Control system for 980 nm high stability laser pump source

TIAN Xiao-jian; SHANG Zu-guo; GAO Bo; WU Ge

doi:10.3788/OPE.20152304.0982

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Control system for 980 nm high stability laser pump source

更新时间：2020-08-13

- Control system for 980 nm high stability laser pump source
- Optics and Precision Engineering Vol. 23, Issue 4, Pages: 982-987(2015)
- 作者机构：
  
  吉林大学电子科学与工程学院,吉林长春,130012
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20152304.0982
  CLC： TN245;TN248.4
- Received：19 January 2015，
  
  Revised：12 February 2015，
  
  Published：25 April 2015
- 稿件说明：
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田小建, 尚祖国, 高博等. 980nm高稳定度激光泵浦源控制系统[J]. 光学精密工程, 2015,23(4): 982-987

TIAN Xiao-jian, SHANG Zu-guo, GAO Bo etc. Control system for 980 nm high stability laser pump source[J]. Editorial Office of Optics and Precision Engineering, 2015,23(4): 982-987
田小建, 尚祖国, 高博等. 980nm高稳定度激光泵浦源控制系统[J]. 光学精密工程, 2015,23(4): 982-987 DOI： 10.3788/OPE.20152304.0982.

TIAN Xiao-jian, SHANG Zu-guo, GAO Bo etc. Control system for 980 nm high stability laser pump source[J]. Editorial Office of Optics and Precision Engineering, 2015,23(4): 982-987 DOI： 10.3788/OPE.20152304.0982.

摘要

设计、制作了一款980 nm高稳定度激光泵浦源控制系统

以满足掺铒光纤放大器(EDFA)稳定工作的需要。首先

以恒流激励原理设计了控制系统的驱动单元。接着

使用半导体制冷器(TEC)作为泵浦源的温度控制手段

设计了控制系统的温度控制单元。为了验证控制系统的有效性

选用一款激光泵浦模块组成了完整的激光泵浦源系统。最后

对激光泵浦源的激光输出进行了实验

研究了光功率与驱动电流的关系

以及系统的光功率稳定度与光谱稳定性等。对系统进行了相关测试实验

结果显示:应用了本控制系统的激光泵浦源的激光输出中心波长为975.2 nm

光功率可达600 mW

短期光功率稳定度为±0.008 dB

长期光功率稳定度为±0.05 dB

比同类激光泵浦源具有更高的稳定度。得到的结果表明:所设计的激光泵浦源控制系统满足设计要求

具有一定的实用价值。

Abstract

A high stable control system for a 980 nm laser pump source was designed and fabricated to Er- doped optical fiber amplifiers for their stable operations. Firstly

a drive unit of the control system was designed based on the principle of a constant current excitation. Followed that

a temperature control unit of the control system was designed by using a Thermoelectric Cooler (TEC) as the measure of temperature control. Then

a complete laser pump source was assembled to verify the effectiveness of the control system. Finally

the output characteristics of the laser pump source was investigated experimentally including the relation between light power and driving current

and the stability of optical power and spectrum. The corresponding tests were performed

and results show that the center wavelength of the laser pump source is 975.2 nm

the optical power reaches 600 mW

and the power stabilities in a short-term and a long-term are ± 0.008 dB and ± 0.05 dB

respectively. As compared with the similar laser pump source

it has a high stability. It indicates that the laser pump source with the designed control system meets the design requirements

and has a certain practical value.

关键词

Keywords

references

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Design of high stability digital control driving system for semiconductor laser

Related Author

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Related Institution

State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering,Jilin University

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