光子学报 ›› 2018, Vol. 47 ›› Issue (12): 1206001-1206001.doi: 10.3788/gzxb20184712.1206001

• 光纤光学与光通信 • 上一篇    下一篇

空间光到少模光纤的耦合效率及影响因素

王超1,2, 范雪冰1,2, 佟首峰2, 李英超2, 江伦1,2, 刘壮2, 史浩东2, 姜会林1,2   

  1. 1. 长春理工大学 光电工程学院, 长春 130022;
    2. 长春理工大学 空间光电技术国家与地方联合工程研究中心, 长春 130022
  • 收稿日期:2018-07-24 出版日期:2018-12-25 发布日期:2018-08-22
  • 作者简介:王超(1986-),女,讲师,博士,主要研究方向为空间光通信和光学设计.Email:nicklo19992009@163.com
  • 基金资助:

    国家自然科学基金(Nos.61805028,61805027,61701045),长春理工大学青年科学基金(No.WQNJJ-2016-15),吉林省科技发展计划资助项目(No.20160204066GX)和国家重点研究发展计划(No.2017YFC0803806)资助

Coupling Efficiency and Influence Factors of Spatial Light into Few-mode Fiber

WANG Chao1,2, FAN Xue-bing1,2, TONG Shou-feng2, LI Ying-chao2, JIANG Lun1,2, LIU Zhuang2, SHI Hao-dong2, JIANG Hui-lin1,2   

  1. 1. School of Photo-Electronic Engineering, Changchun University of Science and Technology, Changchun 130022, China;
    2. National and Local joint Engineering Research Center of Space Optoelectronics Technology, Changchun University of Science and Technology, Changchun 130022, China
  • Received:2018-07-24 Online:2018-12-25 Published:2018-08-22
  • Contact: 2018-08-22
  • Supported by:

    The National Natural Science Foundation of China (Nos. 61805028, 61805027, 61701045), the Youth Natural Science Foundation in Changchun University of Science and Technology (No. WQNJJ-2016-15), Jilin Science and Technology Development Supporting Project (No.20160204066GX) and the National Basic Research Program of China (No.2017YFC0803806)

摘要:

建立了不同影响因素下空间光-少模光纤耦合效率的理论模型.以两模光纤为例分析了相对孔径对耦合效率的影响,当相对孔径为0.17时,耦合效率最高为82.96%.研究了倾斜、离焦、随机角抖动等因素对少模光纤耦合效率的影响.实验测得当横向偏移量为4 μm时,两模光纤的耦合效率比单模光纤高10.23%;当轴向偏移量为125 μm时,两模光纤的耦合效率比单模光纤高11.24%;当随机抖动幅度标准差为5 μm时,两模光纤的耦合效率比单模光纤高12.1%.结果表明少模光纤对信号光接收过程中的干扰因素如倾斜、离焦和随机角抖动都有很好的抑制作用.

关键词: 空间光通信, 随机角抖动, 耦合效率, 前置光放大, 少模光纤, 光纤耦合, 相对孔径

Abstract:

The coupling efficiency theory model of the spatial light into few-mode fiber in the different influence factor is established. Takes two-mode fiber for example to study the relative aperture effect on coupling efficiency. When the relative aperture is 0.17, the highest coupling efficiency is 82.96%. The coupling efficiency in the presence of tilt, defocus and random angular jitter is studied, the experiment show that when the lateral offset is 4 μm, the coupling efficiency of two-mode fiber is higher than single-mode fiber about 10.23%, when the axial offset is 125 μm, the coupling efficiency of two-mode fiber is higher than single-mode fiber about 11.24%, when the random jitter amplitude is 5 μm, the coupling efficiency of two-mode fiber is higher than single-mode fiber about 12.1%. Accordingly, the few-mode fiber can inhibit interference factor such as tilt, defocus and random angular jitter when the signal reception.

Key words: Space optical communication, Coupling efficiency, Random angular jitter, Fiber coupling, Relative aperture, Optical preamplifier, Few-mode fiber

中图分类号: