单模光纤章动跟踪耦合系统设计

吴天琦; 王睿扬; 王超; 于笑楠; 佟首峰

doi:10.3788/YJYXS20203501.0062

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单模光纤章动跟踪耦合系统设计

光学工程 | 更新时间：2020-07-05

- 单模光纤章动跟踪耦合系统设计
- Design of single mode fiber optic nutation tracking coupling system
- 液晶与显示 2020年35卷第1期页码：62-69
- 作者机构：
  
  1.长春理工大学光电工程学院, 吉林长春 130022
  2.长春理工大学空间光电技术国家地方联合研究中心, 吉林长春 130022
- 作者简介：
  
  [ "吴天琦(1993-), 女, 吉林白城人, 硕士研究生, 2016年于长春理工大学获得学士学位, 主要从事光纤耦合与激光章动方面的研究。E-mail:591598444@qq.com" ]
  佟首峰(1972-), 男, 吉林白城人, 教授, 博士生导师, 长江学者, 2000年于中科院长春光学精密机械与物理研究所获得博士学位, 主要从事空间激光通信、电子与通信技术等方面的研究。E-mail:tsf1998@sina.com
- 基金信息：
  
  吉林省教育厅基金(No.JJKH20190562KG)
- DOI：10.3788/YJYXS20203501.0062
  中图分类号： TN248
- 收稿日期：2019-08-16，
  
  修回日期：2019-10-23，
  
  录用日期：2019-10-23，
  
  纸质出版日期：2020-01-05
- 稿件说明：
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吴天琦, 王睿扬, 王超, 等. 单模光纤章动跟踪耦合系统设计[J]. 液晶与显示, 2020,35(1):62-69.

Tian-qi WU, Rui-yang WANG, Chao WANG, et al. Design of single mode fiber optic nutation tracking coupling system[J]. Chinese journal of liquid crystals and displays, 2020, 35(1): 62-69.
吴天琦, 王睿扬, 王超, 等. 单模光纤章动跟踪耦合系统设计[J]. 液晶与显示, 2020,35(1):62-69. DOI： 10.3788/YJYXS20203501.0062.

Tian-qi WU, Rui-yang WANG, Chao WANG, et al. Design of single mode fiber optic nutation tracking coupling system[J]. Chinese journal of liquid crystals and displays, 2020, 35(1): 62-69. DOI： 10.3788/YJYXS20203501.0062.

摘要

在光纤激光通信系统中，为了克服准误差、随机角抖动误差、大气湍流像差对单模光纤耦合效率的影响，本文设计了单模光纤章动跟踪耦合系统。首先基于模场匹配原理，分析了径向偏差和光斑大小对耦合效率的影响。其次在理论分析的基础上，对激光章动跟踪系统进行了设计，主要包括激光器、准直镜、快速反射镜、耦合透镜以及光电探测器，并以光电探测器的能量反馈完成了激光章动跟踪算法设计。最后搭建了实验平台，对系统进行了实验测试。通过实验测试得到，在激光章动跟踪时单模光纤的耦合效率为53.5%，并测试了径向偏差以及光斑大小对耦合效率的影响，得到了相应的曲线。耦合效率满足系统要求，并且实验测试曲线与理论分析的仿真曲线基本一致。

Abstract

In the fiber laser communication system

in order to overcome the influence of quasi-error

random angular jitter error and atmospheric turbulence aberration on SMF(single-mode fiber) coupling efficiency

a single mode fiber optic nutation tracking coupling system is designed. Based on the principle of mode field matching

the influence of radial deviation and spot size on coupling efficiency is analyzed. Secondly

based on the theoretical analysis

the laser nutation tracking system is designed

including laser

collimating mirror

fast mirror

coupling lens and photodetector

and the laser nutrient is completed by the energy feedback of the photodetector. Tracking algorithm is designed. Finally

an experimental platform is built and the system is tested experimentally. Through experimental tests

the coupling efficiency of single mode fiber is 53.5% in laser nutation tracking

the influence of radial deviation and spot size on coupling efficiency is tested

and the corresponding curve is obtained. The coupling efficiency satisfies the system requirements

and the experimental test curve is basically consistent with the theoretical analysis.

关键词

Keywords

references

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