Wavelength stabilizer with dual fiber Bragg grating for 980 nm semiconductor laser

LI Yi; HUANG Yi-ze; WANG Hai-fang; YU Xiao-jing; ZHANG Hu; ZHANG Wei; ZHU Hui-qun

doi:10.3788/OPE.20101807.1468

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Wavelength stabilizer with dual fiber Bragg grating for 980 nm semiconductor laser

Article | 更新时间：2020-08-12

- Wavelength stabilizer with dual fiber Bragg grating for 980 nm semiconductor laser
- Optics and Precision Engineering Vol. 18, Issue 7, Pages: 1468-1475(2010)
- 作者机构：
  
  1. 上海理工大学光电信息与计算机工程学院上海,200093
  2. 上海市现代光学系统重点实验室上海,200093
  3. 五邑大学薄膜与纳米材料研究所,广东江门,529020
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20101807.1468
  CLC：
- Received：31 March 2010，
  
  Revised：17 May 2010，
  
  Published Online：30 July 2010，
  
  Published：20 July 2010
- 稿件说明：
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李毅, 黄毅泽, 王海方, 俞晓静, 张虎, 张伟, 朱慧群. 980 nm半导体激光器双布拉格光纤光栅波长锁定器[J]. 光学精密工程, 2010,18(7): 1468-1475

LI Yi, HUANG Yi-ze, WANG Hai-fang, YU Xiao-jing, ZHANG Hu, ZHANG Wei, ZHU Hui-qun. Wavelength stabilizer with dual fiber Bragg grating for 980 nm semiconductor laser[J]. 光学精密工程, 2010,18(7): 1468-1475
李毅, 黄毅泽, 王海方, 俞晓静, 张虎, 张伟, 朱慧群. 980 nm半导体激光器双布拉格光纤光栅波长锁定器[J]. 光学精密工程, 2010,18(7): 1468-1475 DOI： 10.3788/OPE.20101807.1468.

LI Yi, HUANG Yi-ze, WANG Hai-fang, YU Xiao-jing, ZHANG Hu, ZHANG Wei, ZHU Hui-qun. Wavelength stabilizer with dual fiber Bragg grating for 980 nm semiconductor laser[J]. 光学精密工程, 2010,18(7): 1468-1475 DOI： 10.3788/OPE.20101807.1468.

摘要

提出了优化由两个均匀布拉格光纤光栅组成的980 nm半导体激光器波长锁定器的方法以满足光纤放大器对半导体激光器的性能要求。运用耦合模理论推导了双布拉格光纤光栅(FBG)的透射率和反射率的解析表达式和波长锁定器增益方程。研究了两光栅之间的距离、光栅到激光器前端面的距离、光栅折射率、光栅折射率周期、光栅栅长和温度对激光器增益曲线的影响

并通过优化这些参数来达到最佳的锁模性能。测量了带双FBG波长锁定器的非致冷半导体激光器的输出光谱和出纤功率。实验结果表明:高功率非致冷980 nm半导体激光器在0~70 ℃时的波长漂移为0.5 nm

边模抑制比达45 dB以上

半峰值全宽度＜1 nm。经优化设计的980 nm半导体激光器FBG波长锁定器可满足光纤放大器对非致冷半导体激光器大功率、长寿命、高可靠性、小尺寸等性能的要求。

Abstract

A optimization method is put forward for a wavelength stabilizer with dual Fiber Bragg Grating (FBG) used in 980 nm semiconductor lasers to meet the performance requirements of fiber amplifiers. The analytical expressions of transmittivity and reflectivity of dual FBG and the gain equations of the stabilizer are obtained by the coupled mode theory. The effects of the distance between the two gratings

the distance between laser front face and dual FBG

the period of refractivity

grating length

the refractivities and ambient temperatures of two gratings on the laser gain curves are analyzed.And these parameters then are optimized to achieve the best mode-stabilizing characteristics. The output spectral characteristics and powers of the uncooled semiconductor laser with dual FBG wavelength stabilizer are practically measured. Experimental results indicate that when the laser operates at 0~70 ℃

the wavelength shift is 0.5 nm

the Side Mode Suppression Ratio (SMSR) is more than 45dB

and the Full Width at Half Maximum (FWHM) is less than 1 nm. The optimized wavelength stabilizer with FBGs can satisfy the requirements of fiber amplifiers for uncooled semiconductor lasers

and can achieve high powers

long life

high reliability

small sizes

and low costs.

关键词

Keywords

references

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