纳秒级脉冲型群红外量子级联激光器驱动电源

党敬民; 翟冰; 高宗丽; 陈晨; 王一丁

doi:10.3788/OPE.20132109.2209

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纳秒级脉冲型群红外量子级联激光器驱动电源

现代应用光学 | 更新时间：2020-08-12

- 纳秒级脉冲型群红外量子级联激光器驱动电源
- Nanosecond driver for multiple pulse-modulated Infrared quantum cascade lasers
- 光学精密工程 2013年21卷第9期页码：2209-2216
- 作者机构：
  
  1. 吉林大学电子科学与工程学院集成光电子学国家重点联合实验室，吉林长春 130012
  2. 吉林大学仪器科学与电气工程学院，吉林长春 130026
- 作者简介：
- 基金信息：
  
  863&rdquo();国家高技术研究发展计划项目();吉林省科技厅项目()
- DOI：10.3788/OPE.20132109.2209
  中图分类号： TN245
- 收稿日期：2013-01-04，
  
  修回日期：2013-03-11，
  
  网络出版日期：2013-09-30，
  
  纸质出版日期：2013-09-15
- 稿件说明：
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党敬民翟冰高宗丽陈晨王一丁. 纳秒级脉冲型群红外量子级联激光器驱动电源[J]. 光学精密工程, 2013,21(9): 2209-2216

DANG Jing-min ZHAI Bing GAO Zong-li CHEN Chen WANG Yi-ding. Nanosecond driver for multiple pulse-modulated Infrared quantum cascade lasers[J]. Editorial Office of Optics and Precision Engineering, 2013,21(9): 2209-2216
党敬民翟冰高宗丽陈晨王一丁. 纳秒级脉冲型群红外量子级联激光器驱动电源[J]. 光学精密工程, 2013,21(9): 2209-2216 DOI： 10.3788/OPE.20132109.2209.

DANG Jing-min ZHAI Bing GAO Zong-li CHEN Chen WANG Yi-ding. Nanosecond driver for multiple pulse-modulated Infrared quantum cascade lasers[J]. Editorial Office of Optics and Precision Engineering, 2013,21(9): 2209-2216 DOI： 10.3788/OPE.20132109.2209.

摘要

由于红外混合气体的检测方法要求电源具有驱动群红外量子级联激光器 (QCL) 的能力，本文设计并研制了一种新型群QCL驱动电源。为了避免驱动电流多路输出的交叉影响，该电源采用了时分复用控制方案，并结合高速模拟比例-积分(PI) 反馈

实现了每一条输出支路电流的独立调节。系统采用脉冲频率调制(PFM)与脉冲宽度调制(PWM)相结合的方法，改善了驱动脉冲的频率及脉宽特性，确保了各支路激光器均工作在最佳状态。利用该驱动电源对中国科学院半导体所研制的中心波长分别为4.8，7.49，7.71 和10.7 m的4种QCL进行了驱动测试。结果表明：在长时间 (220 h) 运行中，系统驱动电流长期稳定度为4.6210-6，线性度为0.029 1%，满足驱动群量子级联激光器的要求，为红外混合气体的检测提供了可靠的保障。

Abstract

A driving generator to drive multiple infrared Quantum Cascade Lasers (QCLs) was designed under an experimental validation for detection of mixed infrared gases. To avoid the cross-influence of the driving currents among multi-channels

the Time Division Multiplexing (TDM) method integrating with the fast analog proportional-integral (PI) control theory was used to adjust the regulating output currents in each branch independently. A control method combined pulse frequency modulation (PFM) and Pulse Width Modulation (PWM) was proposed to improve the characteristics of the operating frequency and the pulse width of driving pulse and to guarantee the lasers of each branch to operate in an optimum condition. By utilizing the illustrated driver

a driving test was performed on four QCLs with center wavelengths at 4.8

7.49

7.71 and 10.7 m respectively fabricated by Institute of Semiconductor

Chinese Academy of Sciences. Experimental results demonstrate that the stability of driving current is 4.6210-6 and the linearity of power system is 0.029 1% during a long-term operation (220 h)

which meets the requirements of driving multiple QCLs and provides a strong guarantee for mixed infrared gas detection.

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references

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