北京航空航天大学学报 ›› 2009, Vol. 35 ›› Issue (3): 304-307.

• 论文 • 上一篇    下一篇

基于功率取样的光纤光源平均波长控制技术

杨远洪, 申 彤, 赵冠成   

  1. 北京航空航天大学 仪器科学与光电工程学院, 北京 100191
  • 收稿日期:2008-03-14 出版日期:2009-03-31 发布日期:2010-09-16
  • 作者简介:杨远洪(1969-),男,湖北武汉人,教授,yhyang@263.net.cn.

Broadband fiber source mean-wavelength control with optical power feedback

Yang Yuanhong, Shen Tong, Zhao Guancheng   

  1. School of Instrument Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
  • Received:2008-03-14 Online:2009-03-31 Published:2010-09-16

摘要: 为提高宽谱光纤光源温度稳定性,对平均波长温度稳定性进行了分析;对不同泵浦功率下输出光的平均波长与输出功率的变化进行了仿真和实验研究,揭示了宽谱光纤光源平均波长与输出功率的相关性;提出并实现了一种基于数学模型的平均波长控制技术.从光源输出取出小部分功率作为反馈信号,通过调整泵浦激光器电流实现了中心波长的精确控制.对研制的样机进行了实际测试,结果表明控制方案是可行的,在-45~70℃的温度范围内,宽谱光纤光源的平均波长稳定性达到0.3×10-6℃-1.

Abstract: To promote the broadband fiber source temperature stability, the mean-wavelength stability of broadband fiber source was analyzed and the dependence between the mean-wavelength and the output optical power was revealed based on the simulation and experiment study on the change of mean-wavelength and output power under different pump optical power. A mean-wavelength control scheme was proposed based on the dependent mathematical model among with mean-wavelength, feedback power and environmental temperature by temperature experiment. The mean-wavelength precision control was realized by taking small part power from fiber source output as feedback signal and adjusting the pump power by changing drive current. A prototype fiber source was made and tested. The result approves this scheme and 0.3×10-6℃-1 mean-wavelength stability within -45~70℃ was achieved.

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