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2017年46卷5期26篇论文

<RECORD 1>

Accession number:20173104014267

Title:Bidirectional Quantum Teleportation Controlled by Single-qutrit State

Authors:Liao, Cong (1); Zhang, Wei (1); Liu, Hua-Bo (1); Wang, Si-Meng (1)

Author affiliation:(1) School of Science, Xi'an University of Posts and Telecommunications, Xi'an; 710121, China

Corresponding author:Zhang, Wei(zhangweio@xiyou.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0527002

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:In order to realize the single-qutrit state controlled bidirectional quantum teleportation, a protocol was proposed by using the methods of tensor representation and generalized three-dimensional Bell basis measurement. In this protocol, the quantum state of the controller Carol is arbitrary generalized three-dimensional Bell basis. The six-qutrit entangled state was chosen as the initial quantum channel, and the necessary conditions to judge whether any six-qutrit entangled state could be used as quantum channel were given. Based on the necessary conditions, with the aid of the unitary property of the SO(3) group element, a general method for constructing quantum channels was given by selecting its arbitrary two elements as the unitary matrices. Two specific examples were given, in which Alice, Bob and Carol worked together by performing generalized three-demensional Bell basis measurement and corresponding unitary transformation. At last, the exchange of quantum state between Alice and Bob was achieved, which verified the feasibility of the proposed protocol. &copy; 2017, Science Press. All right reserved.

Number of references:22

Main heading:Quantum entanglement

Controlled terms:Bells - Communication channels (information theory) - Optical variables measurement - Quantum communication - Quantum optics - Quantum theory - Tensors

Uncontrolled terms:Bell-basis measurements - Channel parameter - Quantum teleportation - Single-qutrit state - Tensor representation - Unitary matrix

Classification code:716  Telecommunication; Radar, Radio and Television - 716.1  Information Theory and Signal Processing - 752.1  Acoustic Devices - 921.1  Algebra - 931.4  Quantum Theory; Quantum Mechanics - 941.4  Optical Variables Measurements

DOI:10.3788/gzxb20174605.0527002

Funding Details: Number; Acronym; Sponsor: 51402235; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 2>

Accession number:20173104014266

Title:Quantum Lidar Based on Squeezed Sates of Light

Authors:Feng, Fei (1); Xu, Jiang-Meng (1); Ma, Jing-Ting (1); Liu, Zun-Long (1); Zhang, Wei-Jie (1)

Author affiliation:(1) Beijing Huahang Radio Measurement Institute, Beijing; 100013, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0527001

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:The simulations of the noise distribution of vacuum state, single photon state and squeezed state in phase space were presented by Wigner function, respectively and the technology of the quantum lidar based on the squeezed field was systematically analyzed, including quantum coherent lidar and quantum lidar with squeezed light injection. Compared to the classical lidar, a higher squeezing degree benefits improvement of the detection Signal-To-Noise Ratio (SNR) for quantum coherent lidar, and a squeezing degree of 8dB would afford a 6.25-fold improvement in SNR theoretically, while the quantum lidar with squeezed vacuum injection has higher spatial resolution, which depends on the squeezing level of the squeezed vacuum and the gain of the phase sensitive amplifier. The results show that the quantum lidar has obvious advantages in the fields of weak signal detection and high-resolution imaging as the improvements of the signal-to-noise by using squeezed light. &copy; 2017, Science Press. All right reserved.

Number of references:21

Main heading:Signal to noise ratio

Controlled terms:Image reconstruction - Optical communication - Optical radar - Particle beams - Phase space methods - Quantum optics - Quantum theory - Signal detection - Squeezed light

Uncontrolled terms:Coherent detection - High-resolution imaging - Noise distribution - Phase sensitive amplifiers - Single photon state - Spatial resolution - Squeezed vacuum - Weak signal detection

Classification code:716.1  Information Theory and Signal Processing - 716.2  Radar Systems and Equipment - 717.1  Optical Communication Systems - 741.1  Light/Optics - 741.3  Optical Devices and Systems - 921  Mathematics - 931.4  Quantum Theory; Quantum Mechanics - 932.1  High Energy Physics

Numerical data indexing:Decibel 8.00e+00dB

DOI:10.3788/gzxb20174605.0527001

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 3>

Accession number:20173104014259

Title:Theoretical Design and Computational Simulation of Flat Response X-ray Photocathode

Authors:Wang, Chuan-Ke (1, 2); Li, Jin (1); Yang, Ming (3); Wang, Bao-Qing (1, 3); Li, Ting-Shuai (3); Yi, Tao (1); Liu, Shen-Ye (1)

Author affiliation:(1) Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang; Sichuan; 621900, China; (2) Management Center of Inertial Confinement, China Academy of Engineering Physics, Mianyang; Sichuan; 621900, China; (3) School of Energy Science and Engineering, University of Electronic Science and Technology of China, Chengdu; 611731, China

Corresponding author:Li, Jin(jinli1025@gmail.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0523001

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A flat-response X-ray photocathode at the energy range of 0.1~5 keV was presented. The photocathode consists of two layers of metal material with same area and different thickness. After optimizing the thickness and microstructure of two metal layers, the proposed photocathode does not need complex corrections in the interested X-ray energy range of inertial confinement fusion experiment due to the flat-response characteristics. The flatness of the proposed X-ray photocathode with 4 kinds of materials respectively was simulated by adjusting the material, thickness and duty ratio. The simulation results show that the proposed photocathode has flat-response with flatness better than 5% at the X-ray energy range of 0.1~5 keV. &copy; 2017, Science Press. All right reserved.

Number of references:23

Main heading:Photocathodes

Controlled terms:Inertial confinement fusion - Streak cameras - X rays

Uncontrolled terms:Computational simulation - Different thickness - Energy ranges - Inertial confined fusion - Metal materials - Response characteristic - Theoretical design - X-ray energies

Classification code:714.1  Electron Tubes - 742.2  Photographic Equipment - 932.1  High Energy Physics - 932.2.1  Fission and Fusion Reactions

Numerical data indexing:Electron_Volt 1.00e+02eV to 5.00e+03eV, Percentage 5.00e+00%

DOI:10.3788/gzxb20174605.0523001

Funding Details: Number; Acronym; Sponsor: 11405158; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 11435011; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 4>

Accession number:20173104014263

Title:Simulation of Light Field Imaging and Refocusing Models Based on Matrix Transformation

Authors:Xie, Pei-Yue (1, 2, 3); Yang, Jian-Feng (1); Xue, Bin (1); Chen, Guo-Qing (1, 2)

Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) Xi'dian University, Xi'an; 710071, China

Corresponding author:Xue, Bin(xuebin@opt.ac.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0510001

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Based on the double plane representation of the light field, aimed at the effect of light on the way of description influenced by coaxial translation, off-axis translation, coplanar rotation and off-planar rotation, and lens transformation between two reference plane of light field camera, this paper provided the corresponding matrix transformation equations. And using the transformation equations, the imaging model, sampling model, and radiation model of light field camera are established. Besides, on the view of light field coaxial space distance transformation, the digital refocusing process is deduced which can receive clearly imaging in any target scene point after got the imaging by focusing at a point. And moreover, by using the established model, the object is generated by computer simulation, and the model is used for digital refocusing on generation of features, the consistency of digital refocusing image and the directly focused images are verified. &copy; 2017, Science Press. All right reserved.

Number of references:12

Main heading:Linear transformations

Controlled terms:Cameras - Mathematical models - Mathematical transformations - Microlenses

Uncontrolled terms:Light fields - Matrix transformation - Micro-lens arrays - Planar rotation - Radiation modeling - Reference plane - Sampling model - Transformation equationss

Classification code:741.3  Optical Devices and Systems - 742.2  Photographic Equipment - 921.3  Mathematical Transformations

DOI:10.3788/gzxb20174605.0510001

Funding Details: Number; Acronym; Sponsor: 41427805; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 5>

Accession number:20173104014260

Title:Design and Characterization of Traveling-wave Electrodes for InP-based Rectangular Mach-Zehnder High Speed Electro-optic Modulators

Authors:Zhao, Li-Ya (1); Wang, Le (1); Yang, Yan (2); Liu, Ke (1, 3)

Author affiliation:(1) Key Laboratory of Optoelectronics Technology, Ministry of Education, Faculty of Information Technology, Beijing University of Technology, Beijing; 100124, China; (2) School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore; 639798, Singapore; (3) Department of Electrical and Computer Engineering, George Washington University, Washington, DC, 20052, United States

Corresponding author:Liu, Ke(liuke@bjut.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0523002

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:An ultra-compact rectangular Mach-Zehnder (MZ) interference Electro-Optic (EO) modulator on InGaAsP/InP platform was proposed. This modulator consists of novel trench couplers and 90&deg; waveguide bends. T type microstrip Travelling-Wave (TW) electrodes were designed for the L-shape waveguide phase shift arm of the MZ modulator. First of all, an upper bandwidth limit of this modulator was evaluated by using an equivalent circuit model of the TW electrodes. According to microwave characteristics such as impedance match, return loss and bandwidth, the transmission and input/output of electrodes and structure parameters of transition regions were optimized through a finite element analysis method. The simulation results show that being limited by the input of electrodes and transition regions, the overall TW electrodes exhibit an impedance match of &gt;42&Omega;, return loss of &lt;-15 dB and bandwidth of 65 GHz. Experimentally the return loss of -12 dB and the bandwidth of &gt;20 GHz are obtained in terms of the fabricated Ti/Au electrodes on an InP substrate. &copy; 2017, Science Press. All right reserved.

Number of references:25

Main heading:Modulators

Controlled terms:Bandwidth - Electrodes - Electrooptical devices - Equivalent circuits - Finite element method - Gallium alloys - Impedance matching (electric) - Indium alloys - Integrated optics - Light modulation  - Light modulators - Scattering parameters - Wave transmission - Waveguides

Uncontrolled terms:Characteristic impedance - Electro-optic modulators - Equivalent circuit model - Finite element analysis method - Microwave characteristics - Structure parameter - Traveling wave electrodes - Travelling wave electrodes

Classification code:549.3  Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 703.1  Electric Networks - 713.3  Modulators, Demodulators, Limiters, Discriminators, Mixers - 714  Electronic Components and Tubes - 714.3  Waveguides - 716.1  Information Theory and Signal Processing - 741.1  Light/Optics - 921.6  Numerical Methods

Numerical data indexing:Decibel -1.20e+01dB, Frequency 6.50e+10Hz

DOI:10.3788/gzxb20174605.0523002

Funding Details: Number; Acronym; Sponsor: 61377059; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 6>

Accession number:20173104014251

Title:Sagnac-effect Enhancement with Squeezed Vacuum Light Input and Photon Counting Technique

Authors:Chen, Kun (1); Chen, Shu-Xin (1); Wu, De-Wei (1); Yang, Chun-Yan (1); Miao, Qiang (1)

Author affiliation:(1) Information and Navigation College, Airforce Engineering University, Xi'an; 710077, China

Corresponding author:Chen, Shu-Xin(chenshuxin68@163.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0512003

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Sagnac effect can be enhanced with squeezed vacuum light input and Quantum Balanced Homodyne Detection (QBHD), which can result in the improvement of the gyroscope precision. By considering the phase sensitivity obtained by QBHD is related to the phase itself, the best sensitivity is achieved only at some certain value of phase. A scheme based photon counting was designed to extract the Sagnac output phase with Bayesian theory. The theoretical analysis results show that, the proposed scheme can break through the Shot Noise Limit(SNL), and the phase accuracy can reach Heisenberg Limit(HL) theoretically when the power of squeezed vacuum light and coherent light are equal. Meanwhile, the best phase sensitivity can be achieved at any value of phase, which is advantageous for gyro to reach the best sensitivity at any output phase. &copy; 2017, Science Press. All right reserved.

Number of references:21

Main heading:Shot noise

Controlled terms:Decision theory - Gyroscopes - Photons

Uncontrolled terms:Balanced homodyne detection - Bayesian theory - Heisenberg limit - Noise limit - Phase accuracy - Phase sensitivity - Photon counting - Squeezed vacuum

Classification code:931.3  Atomic and Molecular Physics - 961  Systems Science

DOI:10.3788/gzxb20174605.0512003

Funding Details: Number; Acronym; Sponsor: 61573372; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61603413; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 7>

Accession number:20173104014254

Title:Design of High Ratio Middle Infrared Continuous Zoom Optical System

Authors:Yang, Ming-Yang (1, 2); Yang, Hong-Tao (1, 2); Qu, Rui (1); Mei, Chao (1); Zhou, Zuo-Feng (1)

Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China

Corresponding author:Yang, Ming-Yang(yangmingyang@opt.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0522003

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Based on the structure of compounding zoom system, a mathematical model of three component continuous zoon design was proposed. Under the guidance of the model, a compact high zoom ratio continuous zoom optical was designed with medium-wave cooling 15&mu;m, 640&times;512 staring focal plane array. The system works in the range of 3.7~4.8&mu;m and F number is 4. By using this model to distribute the optical power, the initial focal point is calculated to obtain the focal length range of 9~740mm and the zoom ratio is 80&times;. The whole system used only two kinds of infrared materials of silicon and germanium and eight lenses were used. The system was U-folded by using the secondary imaging and two 45&deg; reflecting mirrors, it effectively achieved 100% cold shield efficiency and controlled the horizontal and vertical dimension. It got the moving lens zoom track and cam curve of each group, and analyzed the continuous zoom optical system from MTF, spot diagram, distortion, narcissus, environment analysis and so on. The design results prove that the zoom system has the advantages of smooth zoom track, great narcissus controlled features and excellent image and it has also been found to apply to infrared imaging system matching with advanced middle wave detector greatly. Finally, the correctness and feasibility of the mathematical model are verified exactly. &copy; 2017, Science Press. All right reserved.

Number of references:16

Main heading:Optical systems

Controlled terms:Infrared imaging - Lenses - Optical design - Thermography (imaging)

Uncontrolled terms:Continuous zooms - Environment analysis - Infrared material - Infrared technique - Large zoom ratios - Reflecting mirrors - Three component - Vertical dimensions

Classification code:741.1  Light/Optics - 741.3  Optical Devices and Systems - 742.1  Photography - 746  Imaging Techniques

Numerical data indexing:Percentage 1.00e+02%, Size 1.50e-05m, Size 3.70e-06m to 4.80e-06m, Size 9.00e-03m to 7.40e-01m

DOI:10.3788/gzxb20174605.0522003

Funding Details: Number; Acronym; Sponsor: 61201376; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: Y429611213; CAS; Chinese Academy of Sciences

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 8>

Accession number:20173104014265

Title:Feature Selection Based on Structure Preserving for Hyperspectral Image Combination with Multi-scale Spatial Filtering and Hierarchical Network

Authors:Hou, Bang-Huan (1); Zhang, Geng (2); Wang, Fei (3); Yu, Wei-Zhong (1, 3); Yao, Min-Li (1); Hu, Bing-Liang (2)

Author affiliation:(1) Department of Information Engineering, Rocket Force Engineering University, Xi'an; 710025, China; (2) Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an; 710119, China; (3) School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an; 710048, China

Corresponding author:Hu, Bing-Liang(hbl@opt.ac.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0510003

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:In order to make full use of the abundant spectral and spatial information of hyperspectral images, a novel feature selection algorithm based on the structure preserving combination with the multi-scale spatial filtering and the hierarchical network is proposed. The feature subset that best preserving the global similarity and the local manifold structure is selected via l<inf>2, 1</inf>norm mathematical model. The bilateral filtering with multi-scale window and adaptive parameter setting is used for incorporating spatial information into spectral data automatically, enhancing the similarity within class and dissimilarity between different classes. The hierarchical network is introduced to achieve further integration of spatial and spectral information that benefit the classification. The influence of the hierarchical network depth and spatial filtering scale number is analyzed. The experiments validate the effectiveness of the algorithm. The overall classification accuracies reaches to 90.98% and 94.20% on Indian Pines and PaviaU data sets respectively, which significantly improve the classification of land cover compared with conventional methods. &copy; 2017, Science Press. All right reserved.

Number of references:21

Main heading:Information filtering

Controlled terms:Beamforming - Classification (of information) - Feature extraction - Hyperspectral imaging - Independent component analysis - Nonlinear filtering - Spectroscopy

Uncontrolled terms:Adaptive parameter setting - Bilateral filtering - Classification accuracy - Feature selection algorithm - Hierarchical network - Local manifold structure - Manifold learning - Spatial neighbors

Classification code:711.2  Electromagnetic Waves in Relation to Various Structures - 716.1  Information Theory and Signal Processing - 903.1  Information Sources and Analysis

Numerical data indexing:Percentage 9.10e+01%, Percentage 9.42e+01%

DOI:10.3788/gzxb20174605.0510003

Funding Details: Number; Sponsor: 2014M562636; China Postdoctoral Science Foundation - Number; Acronym; Sponsor: 61401471; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 9>

Accession number:20173104014250

Title:Signal-noise Ratio Measurement Based on Space Scanning of Optical Kerr Gate for Single Shot Laser

Authors:He, Jun-Fang (1); Zhao, Xiao-Xia (1); Luo, Wen-Feng (2); Wang, Hong-Ying (1); Zhu, Chang-Jun (3); Li, Yuan-Yuan (1)

Author affiliation:(1) Shaanxi Key Laboratory of Surface Engineering and Remanufacturing, Xi'an University, Xi'an; 710065, China; (2) School of Electronic Engineering, Xi'an University of Posts &amp; Telecommunications, Xi'an; 710121, China; (3) Department of Physics, School of Science, Xi'an Polytechnic University, Xi'an; 710048, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0512002

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A measurement method of signal-noise ratio for the single shot laser based on space scanning of optical Kerr gate was presented. In this method, the gate light and probe light transmit orthogonally in optical Kerr medium, the measurement of signal-noise ratio for the single shot laser was achieved by using an optical Kerr gate to make a space scanning for the probe light. With this approach, a single shot laser signal-noise ratio measurement was realized experimentally with a temporal window of 88.2 ps and a resolution of 2.7 ps. This method has no limitation on spectral range because of the gate is controlled by optical Kerr effect. &copy; 2017, Science Press. All right reserved.

Number of references:26

Main heading:Optical Kerr effect

Controlled terms:Probes - Scanning - Signal noise measurement

Uncontrolled terms:Laser signals - Measurement methods - Measurement-based - Optical Kerr gate - Signal-noise ratio - Single shots - Spectral range - Temporal windows

Classification code:741.1  Light/Optics

Numerical data indexing:Time 2.70e-12s, Time 8.82e-11s

DOI:10.3788/gzxb20174605.0512002

Funding Details: Number; Acronym; Sponsor: 60978038; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 10>

Accession number:20173104014247

Title:Generation of a New Kind Partially Coherent Beam and Its Coherent Properties

Authors:Wu, Zi-Hao (1); Chen, Zi-Yang (1); Pu, Ji-Xiong (1); Lin, Zhi-Li (1)

Author affiliation:(1) College of Information Science and Engineering, Fujian Provincal Key Laboratory of Light Propagation and Transformation, Huaqiao University, Xiamen; Fujian; 361021, China

Corresponding author:Pu, Ji-Xiong(jixiong@hqu.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0526002

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Based on the coherent theory, the coherent properties of the new partially coherent beam were studied. The new partially coherent beam with the specific distribution of coherence was formed by the laser passing through a rotating special ground glass. The interference fringes produced by this beam passing through some double-holes with different hole spaces were experimentally recorded and their corresponding coherence degree was calculated. The coherence distributions of this beam under different propagation distances were experimentally investigated. The results show that, the coherence distributions of this beam are different with those of Gaussian Schell-model beams, and the degree of coherence increases with the increasing of propagation distances. &copy; 2017, Science Press. All right reserved.

Number of references:22

Main heading:Gaussian beams

Controlled terms:Coherent light - Physical optics - Wave interference

Uncontrolled terms:Coherent properties - Degree of coherence - Double holes - Gaussian Schell-model beams - Interference fringe - Partially coherent beam - Propagation distances - Specific distribution

Classification code:711  Electromagnetic Waves - 741.1  Light/Optics

DOI:10.3788/gzxb20174605.0526002

Funding Details: Number; Acronym; Sponsor: 11674111; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61575070; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 11>

Accession number:20173104014245

Title:Study on Surface Plasmon Properties of Au Nanocolumns in Liquid Crystal

Authors:Xie, Guo-Da (1); Wang, Li-Hua (1); Li, Xiao-Fei (1); Huang, Zhi-Xiang (1); Wu, Xian-Liang (1)

Author affiliation:(1) Key Laboratory of intelligent Computing &amp; Signal Processing, Anhui University, Hefei; 230039, China

Corresponding author:Huang, Zhi-Xiang(zxhuang@ahu.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0524002

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Liquid crystals are widely used in the display field because of their anisotropic optical properties. In order to study the modulation effect of the liquid crystal environment on the surface plasmon of metal nanostructures, this paper based on the finite difference time domain method, the extinction spectrum of gold nanocolumns in liquid crystal environment is analyzed, Computational space termination is provided by a combination of the perfectly matched layer absorbing boundary condition and periodic boundary conditions. Numerical simulation on the extinction spectrum characteristics of Au nanocolumns by the effects of different parameters, such as inclination angle, grating distance and periodic structure and so on. The results show that with the increase of the angle of the optical axis of the liquid crystal, the resonant wavelength appears redshift, and the modulation range is 40nm. The larger the grating distance, the weaker the interaction between the Au nanocolumns and the smaller of the resonant wavelength. With the increase of the cycle length, the secondary effect is more obvious. The surface plasmonics of the metal nanostructures can be adjusted by the optical properties of the liquid crystal. The results provide a theoretical basis for the study of the surface plasmon structure in the new photonic devices. &copy; 2017, Science Press. All right reserved.

Number of references:21

Main heading:Time domain analysis

Controlled terms:Boundary conditions - Finite difference time domain method - Liquid crystals - Liquids - Modulation - Nanostructures - Optical properties - Periodic structures - Photonic devices - Plasmons

Uncontrolled terms:Anisotropic optical properties - Extinction spectra - Metal nanostructure - Nano-columns - Perfectly-matched layer absorbing boundary conditions - Periodic boundary conditions - Resonant wavelengths - Surface plasmons

Classification code:741.1  Light/Optics - 761  Nanotechnology - 921  Mathematics - 931.3  Atomic and Molecular Physics - 933  Solid State Physics

Numerical data indexing:Size 4.00e-08m

DOI:10.3788/gzxb20174605.0524002

Funding Details: Number; Acronym; Sponsor: 51277001; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61101064; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61471001; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: NCET-12-0596; NCET; Program for New Century Excellent Talents in University

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 12>

Accession number:20173104014264

Title:Study on Color Night Vision Image Fusion Method Based on Quadruple-band Images

Authors:Wu, Hai-Bing (1); Tao, Sheng-Xiang (1); Gu, Guo-Hua (1); Wang, Shu-Yu (1)

Author affiliation:(1) Army Officer Academy, Hefei; 230031, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0510002

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:In order to acquire color images of targets under Low Light Level(LLL) and improve the ability to distinguish targets from background at night, a color night vision image fusion method based on quadruple-band images was proposed. The quadruple-band filter with a transmittance at the center wavelength of three-band color lights and near-infrared band was designed by using Fabry-Perot(FP) filter, and the average transmittance is up to 90% at each transmission region. The quadruple-band filter was designed as a color-wheel filter structure, the spectral transmittance of each single band filter was measured by a spectrometer. The Signal Noise Ratio(SNR) of the night vision system after adding the filter was analyzed and calculated. The analysis results show that adding the filter will not introduce addition noise, and the SNR of the imaging system which added the blue, green, red and near-infrared band filters is equivalent to 19.59%, 38.45%, 47.28% and 46.70% to compare with that of the original monochromatic night vision system, respectively. Using a domestic Super Gen II image intensifier, quadruple-band image acquisition and color image fusion experiments were carried out in LLL laboratory, the experimental illumination is 1&times;10<sup>-1</sup>lx and 1&times;10<sup>-3</sup>lx, a set of images was adopted to conduct quality assessment. Experiment results show that, when the illumination is 1&times;10<sup>-3</sup>lx, the fusion color image is superior to the filtered blue and green monochromatic images both in gray mean, gray variance and information entropy, and the color image is enhanced by the use of the near infrared image, as a result the color image brightness is higher and the color identification is better. When the illumination is 1&times;10<sup>-1</sup>lx, the information entropy of the fusion color image is bigger than that of the red, green and blue color images. This research can give reference to the design and development of color night vision system. &copy; 2017, Science Press. All right reserved.

Number of references:17

Main heading:Image fusion

Controlled terms:Color - Fabry-Perot interferometers - Image acquisition - Image quality - Information filtering - Infrared devices - Infrared imaging - Signal noise measurement - Signal to noise ratio - Vision

Uncontrolled terms:Color night vision - Filter - Image quality assessment (IQA) - Quadruple-band - Signal-noise ratio

Classification code:716.1  Information Theory and Signal Processing - 723  Computer Software, Data Handling and Applications - 723.2  Data Processing and Image Processing - 741.1  Light/Optics - 746  Imaging Techniques - 903.1  Information Sources and Analysis - 941.3  Optical Instruments

Numerical data indexing:Percentage 1.96e+01%, Percentage 3.85e+01%, Percentage 4.73e+01%, Percentage 9.00e+01%

DOI:10.3788/gzxb20174605.0510002

Funding Details: Number; Acronym; Sponsor: 61272333; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 13>

Accession number:20173104014257

Title:All-PM &ldquo;Figure-of-eight&rdquo; Cavity Mode-locked Fiber Laser and Its Power Amplification

Authors:Wen, Ru-Hua (1); Hu, Cheng-Zhi (1); Wei, Kai-Hua (2); Zhang, Bing (1); Yue, Wen-Jie (1); Wu, Bo (1); Jiang, Pei-Pei (1); Shen, Yong-Hang (1)

Author affiliation:(1) State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou; 310027, China; (2) College of Life Information Science &amp; Instrument Engineering, Hangzhou Dianzi University, Hangzhou; 310018, China

Corresponding author:Shen, Yong-Hang(physyh@zju.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0506002

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A Yb-doped mode-locked fiber laser with a tunable pulse width was built by using a cladding pumped all-PM(Polarization Maintaining) &ldquo;figure-of-eight&rdquo; cavity. The Dissipative Soliton Resonance(DSR) square pulses with a central wavelength of 1 064 nm, a repetition rate of 4.683 MHz, a tunable pulse width range from 0.8 ns to 5 ns and an average power range from 74.8 mW to 429.7 mW, are achieved. There is no polarization controller in the cavity. The mode locking state can be self-started only by adjusting the pump input, and then can be keep stable for a long time, and without lock-lose even under the condition of violent vibration. By using the two stage fiber amplifiers to amplify the power, the laser output with an average power of 100 W and the peak power as high as 26.68 kW is achieved. &copy; 2017, Science Press. All right reserved.

Number of references:16

Main heading:Mode-locked fiber lasers

Controlled terms:Fiber amplifiers - Fiber lasers - Fibers - Laser mirrors - Lasers - Locks (fasteners) - Nonlinear optics - Optical pumping - Polarization - Pulse repetition rate  - Pumping (laser) - Solitons - Ytterbium

Uncontrolled terms:Dissipative solitons - Nonlinear optical loop mirror - Polarization controllers - Polarization maintaining - Pulse durations - Square pulse - Tunable pulse widths - Yb-doped

Classification code:547.2  Rare Earth Metals - 741.1.1  Nonlinear Optics - 741.3  Optical Devices and Systems - 744  Lasers

Numerical data indexing:Frequency 4.68e+06Hz, Power 1.00e+02W, Power 2.67e+04W, Power 7.48e-02W to 4.30e-01W, Size 1.06e-06m, Time 8.00e-10s to 5.00e-09s

DOI:10.3788/gzxb20174605.0506002

Funding Details: Number; Acronym; Sponsor: 11304277; NSFC; National Natural Science Foundation of China - Number; Sponsor: LQ16F050002; Natural Science Foundation of Zhejiang Province

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 14>

Accession number:20173104014261

Title:Design and Research of the Light Mixing Component for High- uniformity and Ultra-thin Direct-down LED Panel Light

Authors:Pang, Pei-Yuan (1); Wen, Shang-Sheng (1, 2); Huang, Ya-Qi (1); Zhang, Shuai (1); Chen, Xin-Ya (1); Chen, Hao-Wei (1, 2); Ma, Bing-Xu (1, 2); Kang, Li-Juan (3)

Author affiliation:(1) School of Materials Science and Engineering, South China University of Technology, Guangzhou; 510640, China; (2) State Key Laboratory of Luminescence Materials and Devices, South China University of Technology, Guangzhou; 510640, China; (3) Academy of Fine Arts South China Normal University, Guangzhou; 510631, China

Corresponding author:Kang, Li-Juan(kangljuan@scnu.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0523003

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:In order to design better optical structure of LED panel light and solve the existing direct-down LED panel light's shortcomings of large thickness and high light source density, this paper puts forward two mixed optical components including vertebral structure and half spherical structure that have both reflection and projectionand are applied to the design of ultra-thin direct-down LED panel light to increase the coupling distance of light to improve the light uniformity. The light uniformity and light efficiency are researched when two optical components with different structure are applied to LED panel light by Tracepro software, and further experiments were carried out by Taguchimethod. The results show that the light uniformity of the lamps with vertebral structure's components is 95.42% andits energy efficiency is 92.72% while the light uniformity of the lamps with half spherical structure's components is 97.67% and its energy efficiency is 92.65%, the reason why its light uniformity is higher than vertebral structure's is that the optical component with vertebral structure results in too concentrated light direction due to the directional reflection of the reflecting surface. &copy; 2017, Science Press. All right reserved.

Number of references:17

Main heading:Light emitting diodes

Controlled terms:Energy efficiency - Geometrical optics - Headlights - Light - Light reflection - Light sources - Lighting - Mixing - Musculoskeletal system - Taguchi methods

Uncontrolled terms:Different structure - Directional reflection - Light efficiency - Optical components - Optical structures - Reflecting surface - Spherical structures - TracePro

Classification code:461.3  Biomechanics, Bionics and Biomimetics - 525.2  Energy Conservation - 662.4  Automobile and Smaller Vehicle Components - 714.2  Semiconductor Devices and Integrated Circuits - 741.1  Light/Optics - 802.3  Chemical Operations - 913.3  Quality Assurance and Control

Numerical data indexing:Percentage 9.27e+01%, Percentage 9.54e+01%, Percentage 9.77e+01%

DOI:10.3788/gzxb20174605.0523003

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 15>

Accession number:20173104014248

Title:Polarization Display and Measurement Experiment of Elliptically Polarized Beam

Authors:Zhang, Wen-Jing (1); Zhang, Zhi-Wei (1); Sun, Yun-Qiang (1); Zhu, Xiang (1); Deng, Nan (1); Zhang, Cai-Feng (1); Guo, Peng-Cheng (1); Li, Qing-Sheng (1)

Author affiliation:(1) North University of China, School of Information and Communication Engineering, Taiyuan; 030051, China

Corresponding author:Zhang, Zhi-Wei(zhangzwei@nuc.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0526003

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Using a pair of orthogonally linearly polarized beams as the light source, the azimuthally polarization axis finder, CCD cameras as image collector and Matlab software to process images, a polarization direction display system for polarized light was presented, which consisted of a He-Ne laser and an azimuthally polarization axis finder. The angle characteristics of this system were researched. The results show that the measurement accuracy is 0.480&deg;, 0.168&deg;, 0.528&deg;, 0.421&deg;and 0.340&deg;, the measurement precision is 0.208&deg;, 0.576&deg;, 0.660&deg;, 0.603&deg; and 0.466&deg; in the case that the polarizing angle of polarizer is 0&deg;, 90&deg;, 180&deg;, 270&deg; and 360&deg;, respectively. By fitting a straight line to the experimental data, the linear correlation coefficient is 0.999 for this system. The elliptical polarization measurement system is constructed with a quarter-wave plate, analyzer and beam splitter with 50: 50 splitting ratio. The measurement experiment of elliptically polarized light is completed, and the ellipticity of the elliptic curve is 0.198. &copy; 2017, Science Press. All right reserved.

Number of references:14

Main heading:Polarization

Controlled terms:CCD cameras - Display devices - Image processing - Light - Light polarization - Light sources - MATLAB - Optical data processing - Optical devices - Optical instruments  - Physical optics

Uncontrolled terms:Polarization axis finders - Polarization measurements - Polarized beams - Polarizers - Quarter wave-plate

Classification code:714.2  Semiconductor Devices and Integrated Circuits - 722.2  Computer Peripheral Equipment - 723.2  Data Processing and Image Processing - 741.1  Light/Optics - 741.3  Optical Devices and Systems - 921  Mathematics - 941.3  Optical Instruments

DOI:10.3788/gzxb20174605.0526003

Funding Details: Number; Sponsor: 2012011010-1; Natural Science Foundation of Shanxi Province

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 16>

Accession number:20173104014252

Title:Optimization Design and Test for the Front Frame of a Large Off-axis TMA Space Camera

Authors:Wei, Lei (1, 2); Zhang, Lei (1, 3); Xie, Peng (1); Chen, Su (4)

Author affiliation:(1) Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun; 130033, China; (2) University of Chinese Academy of Sciences, Beijing; 100039, China; (3) Chang Guang Satellite Technology LTD. Co, Changchun; 130000, China; (4) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0522001

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:To guarantee the high stability and high precision of an off-axis thee-mirror optical system space camera, a integration front frame structure was designed to support the second mirror and folded mirror according to the characteristics of the same height of second mirror and folded mirror in optical axis direction, and a topology optimization method based on constraint mode and free mode was proposed to optimize the front frame structure. Then, the integrated structure was assembled into the entire camera after optimization, and the finite element analysis of static was carried out. The results show that the camera maintains excellent static performance with the optical tilt between the primary mirror and secondary mirror being less than 9&Prime; and the optical tilt between the primary mirror and fold mirror being less than 22.4&Prime;, the optical eccentricity between the primary mirror and secondary mirror being less than 0.021 mm, meeting the tolerance requirement of system. By free modal analysis and test to the integrated front frame structure, the results verify the correctness of the design method. The proposed topology optimization method can efficient avoid the defect of topology optimization based on constraint modal frequency that there is no relationship between the constraint points. It can provide reference for design the space camera with high-resolution and wide field. &copy; 2017, Science Press. All right reserved.

Number of references:14

Main heading:Optical testing

Controlled terms:Cameras - Design - Finite element method - Mirrors - Modal analysis - Optical systems - Shape optimization - Structural frames - Topology

Uncontrolled terms:Front frame - Integrated structure - Modal test - Optimization design - Space cameras - Static performance - Tolerance requirement - Topology Optimization Method

Classification code:408.2  Structural Members and Shapes - 741.3  Optical Devices and Systems - 742.2  Photographic Equipment - 921  Mathematics

Numerical data indexing:Size 2.10e-05m

DOI:10.3788/gzxb20174605.0522001

Funding Details: Number; Acronym; Sponsor: 41501383; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 17>

Accession number:20173104014258

Title:DFB Fiber Laser Hydrophone with Acceleration Compensation

Authors:Tang, Bo (1); Huang, Jun-Bin (1); Gu, Hong-Can (1); Mao, Xin (1)

Author affiliation:(1) Department of Weapon Engineering, Naval University of Engineering, Wuhan; 430033, China

Corresponding author:Huang, Jun-Bin(tsy98@163.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0506003

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:To reduce the disturbance of acceleration effects on distributed feedback fiber laser hydrophone used in underwater sound detection, one symmetric structure with two diaphragms was designed and its anti-acceleration performance is investigated. The theoretical acceleration sensitivity model of the hydrophone with two diaphragms was established. After the relation between acceleration sensitivity and component size, materials parameters were analyzed, the structure of the hydrophone was optimized. Prototype of the hydrophone was fabricated and tested. The average pressure sensitivity reaches -132.6 dB with the fluctuation less than &plusmn;0.5 dB in the frequency range of 2.5~10 kHz, while the acceleration sensitivity is less than -28 dB. The results show that this structure of hydrophone ensures the high pressure sensitivity and flat response curve, whose anti-acceleration performance is improved at the same time, which will greatly enhance the signal-to-noise ratio of the hydrophone in the moving state. &copy; 2017, Science Press. All right reserved.

Number of references:11

Main heading:Hydrophones

Controlled terms:Acceleration - Compensation (personnel) - Diaphragms - Fiber lasers - Signal to noise ratio - Underwater acoustics

Uncontrolled terms:Acceleration effects - Acceleration performance - Acceleration sensitivity - Distributed feedback fiber lasers - Materials parameters - Pressure sensitivities - Symmetric structures - Underwater sound

Classification code:601.2  Machine Components - 716.1  Information Theory and Signal Processing - 744.4  Solid State Lasers - 751.1  Acoustic Waves - 752.1  Acoustic Devices - 912.4  Personnel

Numerical data indexing:Decibel -1.33e+02dB, Decibel -2.80e+01dB, Frequency 2.50e+03Hz to 1.00e+04Hz

DOI:10.3788/gzxb20174605.0506003

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 18>

Accession number:20173104014255

Title:Design on the Directional Backlight of Crosstalk Eliminated Autostereoscopic Display

Authors:Chen, Fang-Ping (1); Zhang, Xiao-Ting (1); Liu, Chu-Jia (1); Qi, Yu (1); Zhuang, Qi-Ren (1)

Author affiliation:(1) Fujian Provincial Key Laboratory of Light Propagation and Transformation, Collage of Information Science and Engineering, Huaqiao University, Xiamen; Fujian; 361021, China

Corresponding author:Zhuang, Qi-Ren(qrzhuang@hqu.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0522004

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:The brightness uniformity and the crosstalk are the main factors which affect the applicability of the directional backlight lenticular-lens-based multiple autostereoscopic display. In this paper, by analyzing the causes of the generation of the crosstalk, according to the imaging optics principle of off-axis rays, the parameter calculating formula of the off-axis optical system which is consist of Liquid Crystal Display (LCD)panel column unit and cylindrical lens was derived. Then, a structure of butterfly-shaped LCD panel was proposed and used to design the module of the directional backlight autostereoscopic display. The simulation results show that, the directional backlight autostereoscopic 3D display backlight can eliminate the crosstalk. The crosstalk of the autostereoscopic display is less than 0.5% for the 90% viewing area of the view plane, the 10% peak width of the beam crosstalk area ratio is 0. The 90% peak width of the light beam is 1.37 times larger than that of the common liquid crystal cell structure, and the problem on the brightness of the image in different positions is improved. &copy; 2017, Science Press. All right reserved.

Number of references:20

Main heading:Liquid crystal displays

Controlled terms:Crosstalk - Crystal structure - Display devices - Lenses - Luminance - Optical systems - Stereo image processing - Structural design

Uncontrolled terms:Autostereoscopic 3D displays - Brightness uniformity - Directional backlight - Multi-views - Optical simulation

Classification code:408.1  Structural Design, General - 722.2  Computer Peripheral Equipment - 723.2  Data Processing and Image Processing - 741.3  Optical Devices and Systems - 933.1.1  Crystal Lattice

Numerical data indexing:Percentage 1.00e+01%, Percentage 5.00e-01%, Percentage 9.00e+01%

DOI:10.3788/gzxb20174605.0522004

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 19>

Accession number:20173104014256

Title:Performance Analysis of Optical Carrierless Amplitude and Phase Modulation for Indoor Visible Light Communication System

Authors:Wang, Xu-Dong (1); Cui, Yu (1); Wu, Nan (1); Feng, Hai Yan (1)

Author affiliation:(1) Information Science Technology College, Dalian Maritime University, Dalian; Liaoning; 116026, China

Corresponding author:Cui, Yu(yucui@dlmu.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0506001

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Aimed at the modulation technique used in indoor visible light communication systems, two power efficiency schemes named flip optical carrierless amplitude and phase modulation as well as unipolar optical carrierless amplitude and phase modulation are proposed in this paper. To ensure the signal be suitable for an intensity modulation/direct detection system, the first scheme forms the so called positive block and negative block based on the bipolar signal, the second utilizes a pair of samples including a zero level to mark signal polarity. Lambertian reflection model is introduced in visible light channel which is corrupted by additive white Gaussian noise. The theoretical bit error rate of the three modulation schemes involving DC biased optical carrierless amplitude and phase modulation over visible light transmission channel is derived. Meanwhile, the performance of bandwidth efficiency is analyzed and compared. Monte Carlo simulations is evaluated to corroborate the analysis. In addition, the effects of channel parameters on the system performance are discussed in this paper. The simulation results show that the bit error rate performances improve 6.9 dB and 29.9 dB when the radiation angle of LED is 0&deg; compared with 30&deg; and 45&deg; in the room measuring 5 m&times;5 m&times;3 m. As the distance between the transmitter and receiver reduced from 2 m to 1 m, the optical carrierless amplitude and phase modulation system can obtain better performance of approximately 12 dB. &copy; 2017, Science Press. All right reserved.

Number of references:21

Main heading:Modulation

Controlled terms:Bandwidth - Bit error rate - Efficiency - Errors - Gaussian noise (electronic) - Intelligent systems - Light - Light reflection - Light transmission - Monte Carlo methods  - Optical communication - Optical signal processing - Phase modulation - Visible light communication - White noise

Uncontrolled terms:Additive White Gaussian noise - Amplitude and phase modulations - Bandwidth efficiency - Bit error rate (BER) performance - Intensity modulation/direct detection systems - Lambertian reflection models - Modulation techniques - Transmitter and receiver

Classification code:716.1  Information Theory and Signal Processing - 717.1  Optical Communication Systems - 723.1  Computer Programming - 723.4  Artificial Intelligence - 741.1  Light/Optics - 913.1  Production Engineering - 922.2  Mathematical Statistics

Numerical data indexing:Decibel 1.20e+01dB, Decibel 2.99e+01dB, Decibel 6.90e+00dB, Size 2.00e+00m to 1.00e+00m

DOI:10.3788/gzxb20174605.0506001

Funding Details: Number; Acronym; Sponsor: 61371091; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 20>

Accession number:20173104014262

Title:Tunable Optoelectronic Oscillator Based on Injection-locking Effect in Distributed Feed-back Laser Diode

Authors:Bai, Guang-Fu (1, 2); Jiang, Yang (2); Hu, Lin (2)

Author affiliation:(1) College of Big Data and Information Engineering, Guizhou University, Guiyang; 550025, China; (2) College of Physics, Guizhou University, Guiyang; 550025, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0523004

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A tunable optoelectronic oscillator was proposed by utilizing optical injection-locking effect in a distributed feed-back laser diode. The optoelectronic oscillator loop mainly consists of an intensity modulator, a photodetector, an optical circulator, a distributed feed-back laser diode and a broad band radio frequency amplifier. In the proposed configuration, the distributed feed-back laser diode is key device. By utilizing injection locking of distributed feed-back laser diode rather than the commonly used radio-frequency band-pass filter, a high Q microwave filter is formed in optical domain, and short optoelectronic oscillator loop could be used in the proposed scheme. Thereby the effect of temperature sensitive of fiber on microwave signal stability can be declined and the system size can be reduced. Meanwhile, the central frequency of the microwave filter could be simply tuned and the tunability could be realized by tuning the wavelength and the injection power of the injection light. Theoretical analysis of the optoelectronic oscillator as well as the tunability of microwave filter was provided. Thus, experiment was done to verify the theoretical analysis. The results show that the proposed optoelectronic oscillator can produce the microwave signal with tunable range from 18.7 GHz to 21.6 GHz, and the measured phase noise at 1 kHz offset is -90 dBc/Hz. &copy; 2017, Science Press. All right reserved.

Number of references:19

Main heading:Injection lasers

Controlled terms:Bandpass filters - Broadband amplifiers - Diodes - Distributed feedback lasers - Frequency bands - Microwave filters - Microwave oscillators - Microwaves - Optoelectronic devices - Phase noise  - Radio frequency amplifiers - Radio waves

Uncontrolled terms:Effect of temperature - Injection locked - Injection-locking - Intensity modulators - Optical circulator - Optical injection locking - Opto-electronic oscillator - Radio frequency bands

Classification code:701.2  Magnetism: Basic Concepts and Phenomena - 703.2  Electric Filters - 711  Electromagnetic Waves - 713.1  Amplifiers - 713.2  Oscillators - 741.3  Optical Devices and Systems - 744.1  Lasers, General - 744.4.1  Semiconductor Lasers

Numerical data indexing:Frequency 1.00e+03Hz, Frequency 1.87e+10Hz to 2.16e+10Hz

DOI:10.3788/gzxb20174605.0523004

Funding Details: Number; Acronym; Sponsor: 11264006; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61465002; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 21>

Accession number:20173104014249

Title:Center Detection Algorithm and Knife Plane Calibration of Flat Top Line Structured Light

Authors:Zhang, Xu (1, 2); Zhou, Tao (1)

Author affiliation:(1) School of Mechatronic Engineering and Automation, Shanghai University, Shanghai; 200072, China; (2) State Key Laboratory of Mechanical System and Vibration, Shanghai; 200240, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0512001

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Aiming at the problem that the traditional line structured light plane calibration measurement accuracy is not high and the range of applications is small, a light knife plane calibration method of structured light system based on plane target was proposed. The iterative camera calibration was performed for target image without laser, and the light knife plane calibration was performed for laser target picture. The flat top laser detection center algorithm was proposed that made the light intensity coincide with the uniform distribution. The flat top laser was modeled as a rectangular step function, then the brightness of the background and foreground brightness were estimated to determine light stripe width, and then the light stripe centerge was obtained by calculating the center of gravity within the window of effective pixels. The algorithm was used to deal with pictures with different noise and different blocks, the results show that the root mean square errors are within 0.149 pixel and 0.176 pixel, respectively, which means that the algorithm has high anti-noise ability and high precision. The light strip center was extracted by using the proposed algorithm, the position of the light bar on the target was calculated. According to the light strip center 3D points of at least two postures, the light knife plane was fitted by least squares. By means of iterative camera calibration and knife plane calibration, 3D point cloud data was obtained in the stereo vision model by using triangulation. Two standard balls with mutual distance of 100.5mm were experimental measured, the distance between the camera and the standard balls is 500mm, the distance between two ball centers and the standard distance were compared, the measured average error is 0.236mm. It shows that the flat top laser detection center algorithm is practicable, and the method of light knife plane calibration basically meets the requirements. &copy; 2017, Science Press. All right reserved.

Number of references:19

Main heading:Calibration

Controlled terms:Cameras - Iterative methods - Luminance - Mean square error - Pixels - Signal detection - Stereo image processing - Stereo vision

Uncontrolled terms:3-D measurement - Center detection - Knife plane - Line structured lights - Stripes center

Classification code:716.1  Information Theory and Signal Processing - 723.2  Data Processing and Image Processing - 723.5  Computer Applications - 742.2  Photographic Equipment - 921.6  Numerical Methods - 922.2  Mathematical Statistics

Numerical data indexing:Size 1.01e-01m, Size 2.36e-04m, Size 5.00e-01m

DOI:10.3788/gzxb20174605.0512001

Funding Details: Number; Acronym; Sponsor: 51575332; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61673252; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 22>

Accession number:20173104014246

Title:Humidity on Transmission Characteristics Influence of Polarized Light under Infrared Wavelengths

Authors:Zhang, Su (1); Fu, Qiang (1); Zhan, Jun-Tong (1); Duan, Jin (2); Li, Ying-Chao (1); Jiang, Hui-Lin (1)

Author affiliation:(1) Fundamental Science on Space-Ground Laser Communication Technology Laboratory, Changchun University of Science and Technology, Changchun; 130022, China; (2) School of Electronics and information Engineering, Changchun University of Science and Technology, Changchun; 130022, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0526001

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:For the influence problem of the humidity on polarization transmission character under infrared wavebands, this paper applies Monte Carlo simulation for the common carbonaceous aerosol particles existing in nature. The influence of humidity on polarization transmission characteristics and polarization character difference under infrared wavelengths is researched. The results indicate that the Degree of Polarization (DOP), both linear and circular polarization, gradually rises with the increasing of humidity in the short wave bands; In the medium wave bands, the DOP of them descends with the increasing of the humidity; In long wave bands, the influence of relative humidity on DOP is minimal. To compare linear polarization with circular polarization, we demonstrate that the latter always performs better than the former in the short wave bands, whereas the former maintains its better polarization state. Therefore, in infrared polarization applications these conclusions introduce a method for the wavelength selection, humidity controlling and polarization state application. &copy; 2017, Science Press. All right reserved.

Number of references:13

Main heading:Polarization

Controlled terms:Atmospheric humidity - Circular polarization - Humidity control - Intelligent systems - Light polarization - Monte Carlo methods

Uncontrolled terms:Degree of polarization - Influence of humidity - Infrared Polarization - Infrared wavelengths - Monte carlo algorithms - Polarization difference - Transmission characteristics - Transmission characters

Classification code:443.1  Atmospheric Properties - 711  Electromagnetic Waves - 723.4  Artificial Intelligence - 741.1  Light/Optics - 922.2  Mathematical Statistics

DOI:10.3788/gzxb20174605.0526001

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 23>

Accession number:20173104014253

Title:Design and Implementation of the Intelligent Streak Camera Control System Based on Internet of Things

Authors:L&uuml;, Bin (1, 2); Pei, Cheng-Quan (3); Tian, Jin-Shou (1); Wen, Wen-Long (1); Wang, Jun-Feng (1)

Author affiliation:(1) Key Laboratory of Ultra-fast Photoelectric Diagnostics Technology, Xi'an Institute of Optics and Precision, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an; 710049, China

Corresponding author:Tian, Jin-Shou(tianjs@opt.ac.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0522002

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A distributed intelligent control system was implemented to make streak cameras more protable and intelligent, which achieved the monitoring of working parameters, precise control of the electrode voltage and scanning patterns, additionally, image acquisition and processing. Based on the structure of Internet of things and client-server model, the system realized multimachine collaboration capabilities about wired and wireless devices extension and mobile monitoring. Furthermore, an adjustable self-protection high voltage ringing choke converter was designed for the system. The power supply realized the miniaturization by the simply self-excited topological structure, and its linear adjustment accuracy can reach 1%.The picosecond visible light streak camera with the intelligent control system was calibrated by the Nd:YLF pulse laser (Wavelength of 526.5 nmand pulse width of 8 ps).A dynamic spatial resolution of 20 lp/mm (CTF=14%), a dynamic range of 234:1 and a temporal resolution of 14 ps were reached. &copy; 2017, Science Press. All right reserved.

Number of references:12

Main heading:Distributed parameter control systems

Controlled terms:Control systems - Intelligent control - Internet of things - Overcurrent protection - Streak cameras - YLF lasers

Uncontrolled terms:Adjustment accuracies - Camera control systems - Client-server models - Collaboration capabilities - Design and implementations - Distributed intelligent control - Ringing choke converters - Topological structure

Classification code:723  Computer Software, Data Handling and Applications - 731.1  Control Systems - 742.2  Photographic Equipment - 744.4.1  Semiconductor Lasers

Numerical data indexing:Percentage 1.00e+00%, Time 1.40e-11s, Time 8.00e-12s

DOI:10.3788/gzxb20174605.0522002

Funding Details: Number; Acronym; Sponsor: 11274377; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 24>

Accession number:20173104014242

Title:Ultrafast Transient Focal Vector Field of Few-cycle Femtosecond Quasi Radially Polarized Beams

Authors:Zhang, Yuan-Da (1, 2); Li, Xiu-Jian (1); Jia, Hui (1); Nie, Yong-Ming (3); Liu, Xi-Shun (4)

Author affiliation:(1) College of Science, National University of Defence Technology, Changsha; 410073, China; (2) PLA Unit 95975, Jiuquan; Gansu; 732750, China; (3) China Satellite Maritime Tracking and Controlling Department, Jiangyin; Jiangsu; 214431, China; (4) Colleges of Electric Science and Technology, National University of Defence Technology, Changsha; 410073, China

Corresponding author:Li, Xiu-Jian(xjli@nudt.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0532001

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:The extra-cavity quasi-continue spiral phase modulation method for generating high peak power quasi- radially polarized beam was studied, which show that the generated beam is not perfect radially polarized, the radially polarized components determine the longitudinal electric field distribution, and the transversal field distribution is determined by both of the radially and the azimuthally polarized components. Considering the Richard-Wolf vector diffraction theory, the spatial and temporal distribution of the electric field vectors around the focal spot for various purities were simulated. The results show that the spatial and temporal distribution possesses the features of centrosymmetry and oscillation attenuation, and will be remarkably affected by the carrier envelope phase. Furthermore, the analysis indicates that the interactions between the focused pulse and the electron will be significantly determined by the spatial and temporalvector distribution at the focal spot. The results will provide valuable basis for the laser-particler interaction analysis and further polarization convertor designs. &copy; 2017, Science Press. All right reserved.

Number of references:20

Main heading:Electric power distribution

Controlled terms:Electric fields - Focusing - Light polarization - Polarization - Spatial distribution - Transients - Vectors

Uncontrolled terms:Electric field distributions - Few-cycle - Oscillation attenuation - Quasi-radially - Radially polarized beam - Simulation - Spatial and temporal distribution - Vector diffraction theory

Classification code:701.1  Electricity: Basic Concepts and Phenomena - 706.1.2  Electric Power Distribution - 741.1  Light/Optics - 921  Mathematics - 921.1  Algebra

DOI:10.3788/gzxb20174605.0532001

Funding Details: Number; Acronym; Sponsor: 61070040; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61107005; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61108089; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61205087; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 25>

Accession number:20173104014243

Title:Pulse Period Estimation Method Based on TOA Information

Authors:Song, Jia-Ning (1); Xu, Guo-Dong (1); Dong, Li-Min (1); Xu, Zhen-Dong (1); Zhang, Zhao-Xiang (1)

Author affiliation:(1) Harbin Institute of Technology, Research Center of Satellite, Harbin; 150001, China

Corresponding author:Xu, Guo-Dong(xgdong_61@163.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0532002

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Aiming at the problem of huge computation in pulsar period estimation methods, a direct pulsar period estimation algorithm was proposed. Based on the discussion of the influence of period errors on pulse time of arrival estimation methods, the mathematical model of the said period estimation method using TOA information is derived. In this method, a set of photon time of arrivals(TOAs) is divided into several segments in an equal time interval, and TOA information corresponding to each segment is calculated using time domain methods. According to the formula of the TOA information and period error, the Least Square method is adopted to estimate the period. A new intuitionistic criterion for the precision of pulsar period is developed by the value of the slope of the &phi;-t graph, which is different from the scheme that searches the perfect period based on maximum peak principle. Theoretical analysis and the results of experiments utilizing physical and numerical data are demonstrated that the presented pulsar period estimation method can achieve a precise and high-resolution period from a short observation of photon time of arrivals, which can help to realize the engineering application of X-ray pulsar navigation. &copy; 2017, Science Press. All right reserved.

Number of references:18

Main heading:Time of arrival

Controlled terms:Estimation - Least squares approximations - Navigation - Numerical methods - Photons - Pulsars - Time domain analysis

Uncontrolled terms:Engineering applications - High resolution - Least square methods - Numerical data - Period estimation - Pulse time - Time interval - Time-domain methods

Classification code:657.2  Extraterrestrial Physics and Stellar Phenomena - 716.1  Information Theory and Signal Processing - 921  Mathematics - 921.6  Numerical Methods - 931.3  Atomic and Molecular Physics

DOI:10.3788/gzxb20174605.0532002

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 26>

Accession number:20173104014244

Title:Study on Defect Depth of Surface of KDP Crystals Fabricated by Single Point Diamond Turning

Authors:Ran, Yu-Ting (1, 2, 3); Huang, Hong-Biao (1); Yin, Jin (1, 2); Zhu, Jian-Qiang (1, 3)

Author affiliation:(1) National Laboratory of High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai; 201800, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) School of Physical Science and Technology, ShanghaiTech University, Shanghai; 201210, China

Corresponding author:Zhu, Jian-Qiang(jqzhu@mail.shcnc.ac.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:5

Issue date:May 1, 2017

Publication year:2017

Article number:0524001

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:On the basis of the theory of indentation fracture mechanics, the relationship between the surface defect area and median crack of potassium dihydrogen phosphate crystals were analyzed theoretically. In the machine tool parameters and spindle speed in certain circumstances, the potassium dihydrogen phosphate crystal was processed by single point diamond turning under different cutting depth and feedrate. And then the ratio coefficient of unit area defect on the surface of the crystal was calculated. The experimental results show that the depth of surface defect is proportional to the ratio coefficient of area, which is consistent with the theoretical analysis, so the estimation method for the depth of surface defects by calculating the ratio coefficient of the surface defect area was processed. Finally, the high efficiency cutting process based on this method was proposed, the obtained arithmetic mean height value of surface roughness is better than that of 5 nm by the actual processing. &copy; 2017, Science Press. All right reserved.

Number of references:18

Main heading:Surface defects

Controlled terms:Crystal cutting - Crystal defects - Cutting - Diamond cutting tools - Efficiency - Fracture mechanics - Machine tools - Nonlinear optics - Potassium - Surface roughness  - Turning

Uncontrolled terms:Arithmetic mean - Cutting processing - Defect depth - Estimation methods - High efficiency cutting - Indentation fracture mechanics - Potassium dihydrogen phosphate crystals - Single point diamond turning

Classification code:549.1  Alkali Metals - 603.1  Machine Tools, General - 604.2  Machining Operations - 741.1.1  Nonlinear Optics - 913.1  Production Engineering - 931.1  Mechanics - 931.2  Physical Properties of Gases, Liquids and Solids - 933.1.1  Crystal Lattice - 951  Materials Science

Numerical data indexing:Size 5.00e-09m

DOI:10.3788/gzxb20174605.0524001

Funding Details: Number; Acronym; Sponsor: 61405211; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

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