Design and stability analysis of high frequency LD's driving circuit

DAI Qin; SONG Wen-wu; WANG Xi-jun

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Design and stability analysis of high frequency LD's driving circuit

更新时间：2020-08-12

- Design and stability analysis of high frequency LD's driving circuit
- Optics and Precision Engineering Vol. 14, Issue 5, Pages: 745-748(2006)
- 作者机构：
  
  1. 江苏曙光光学电子仪器厂,江苏扬州,225009
  2. 中国科学院研究生院, 北京 100039
  3. 中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室,吉林长春,130033
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN248.4
- Received：20 October 2005，
  
  Revised：16 July 2006，
  
  Published Online：30 October 2006，
  
  Published：30 October 2006
- 稿件说明：
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DAI Qin, SONG Wen-wu, WANG Xi-jun. Design and stability analysis of high frequency LD's driving circuit[J]. Optics and precision engineering, 2006, 14(5): 745-748.
DOI：

DAI Qin, SONG Wen-wu, WANG Xi-jun. Design and stability analysis of high frequency LD's driving circuit[J]. Optics and precision engineering, 2006, 14(5): 745-748. DOI：

摘要

通过系统地分析影响LD稳定性的主要因素

设计出了计算机实时检测反馈、闭环控制、脉冲稳流的高频LD驱动电源。采用抑制浪涌

减小纹波以及加入延时和软启动电路等多项安全设计及措施确保LD工作的安全性。并且采用半导体制冷片

结合计算机实时检测电路对LD工作温度进行精确控制。初步测量得到LD激光稳定输出功率150 W

温度稳定电路的控温精度达到0.2 ℃

激光频宽为6 GHz的实验结果。

Abstract

On the basis of analyzing the main factors effecting on the LD stability

a 1 kHz repeating frequency LD driving power supply with real-time feedback

closed-loop control and pulse current stabilization was designed. By restraining the surge and the ripple

adopting the delay-time and soft-startup circuit

this system improves the security of both the LD component and power supply. With the thermo-electronic cooler and PC that can detect the circuit real-time

the temperature of the LD can be kept accurately. Primarily

the LD laser output power is 150 W

the stability of the constant temperature power is 0.2 ℃

and the laser line width is about 6 GHz in the experiment.

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Related Institution

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