高稳定输出功率的全固态激光器

王君立; 尹福昌; 宋正勋; 王斌; 梅晓明

doi:10.3788/fgxb20113208.0830

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高稳定输出功率的全固态激光器

器件制备及器件物理 | 更新时间：2020-08-12

- 高稳定输出功率的全固态激光器
- An All-solid-state Laser with High Stability Output Power
- 发光学报 2011年32卷第8期页码：830-833
- 作者机构：
  
  1. 长春理工大学光电工程学院,吉林长春,130022
  2. 中国科学院光电研究院北京,100085
  3. 空军航空大学外训系,吉林长春,130022
- 作者简介：
- 基金信息：
  
  国家863项目(2006AA030103)资助项目()
- DOI：10.3788/fgxb20113208.0830
  中图分类号： TN248.1
- 收稿日期：2011-03-08，
  
  修回日期：2011-05-16，
  
  网络出版日期：2011-08-22，
  
  纸质出版日期：2011-08-22
- 稿件说明：
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王君立, 尹福昌, 宋正勋, 王斌, 梅晓明. 高稳定输出功率的全固态激光器[J]. 发光学报, 2011,32(8): 830-833

WANG Jun-li, YIN Fu-chang, SONG Zheng-xun, WANG Bin, MEI Xiao-ming. An All-solid-state Laser with High Stability Output Power[J]. Chinese Journal of Luminescence, 2011,32(8): 830-833
王君立, 尹福昌, 宋正勋, 王斌, 梅晓明. 高稳定输出功率的全固态激光器[J]. 发光学报, 2011,32(8): 830-833 DOI： 10.3788/fgxb20113208.0830.

WANG Jun-li, YIN Fu-chang, SONG Zheng-xun, WANG Bin, MEI Xiao-ming. An All-solid-state Laser with High Stability Output Power[J]. Chinese Journal of Luminescence, 2011,32(8): 830-833 DOI： 10.3788/fgxb20113208.0830.

摘要

介绍了一种高稳定性输出功率的连续LD抽运Nd∶YVO

全固态532 nm激光器

输出功率为144 mW

采用LD抽运Nd∶YVO

晶体

KTP晶体腔内倍频方式工作。该激光器采用热电制冷器(TEC)实现对LD、KTP晶体的高精度温控

其温控精度达到0.1 ℃。建立了LD电流与输出功率的非线性曲线

通过硅光电池检测激光输出功率实现激光功率实时光反馈

采用阈值式PI控制算法进一步降低稳态误差

通过对抽运驱动电流实施反馈控制获得了波动小于1%的长时间高稳定功率输出。

Abstract

A CW

LD pumped Nd∶YVO

532 nm green laser with high stability output power of 144 mW was reported. The laser stability was achieved by double closed-loop feedback system

which provided the high accuracy temperature control of LD and KTP crystal by thermoelectric cooler (TEC) and feedback control of laser power. The accuracy of temperature control reached the level of 0.1 ℃ in the experiment. Meanwhile

the real-time feedback of LD output power was based on the error variance of nonlinearity curve by Si-photo detecting variables with LD current. Threshold mode PI control algorithm could reduce the stable error and their output signals were used to adjust LD pump current source as so to gain the output power stability. The long-term stability was excellent with 1% variation in the output power.

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Keywords

references

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