高功率窄线宽微秒脉冲1 064 nm环形腔激光

鲁远甫; 谢仕永; 刘艳; 杨程亮; 王鹏远

doi:10.3788/OPE.20162413.0035

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高功率窄线宽微秒脉冲1 064 nm环形腔激光

更新时间：2020-08-13

- 高功率窄线宽微秒脉冲1 064 nm环形腔激光
- High-power narrow linewidth microsecond pulse 1064 nm ring laser
- 光学精密工程 2016年24卷第10s期页码：35-40
- 作者机构：
  
  1. 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
  2. 中国科学院深圳先进技术研究院,广东深圳,518055
  3. 中国科学院大连化学物理研究所化学激光重点实验室,辽宁大连,116023
- 作者简介：
- 基金信息：
  
  应用光学国家重点实验室开放基金资助项目（No.37730301）();深圳市科技计划资助项目（No.CXZZ20140609162846202，JCYJ20140417
- DOI：10.3788/OPE.20162413.0035
  中图分类号： TN248.1
- 收稿日期：2016-05-16，
  
  修回日期：2016-06-08，
  
  纸质出版日期：2016-11-14
- 稿件说明：
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鲁远甫, 谢仕永, 刘艳等. 高功率窄线宽微秒脉冲1 064 nm环形腔激光[J]. 光学精密工程, 2016,24(10s): 35-40

LU Yuan-fu, XIE Shi-yong, LIU Yan etc. High-power narrow linewidth microsecond pulse 1064 nm ring laser[J]. Editorial Office of Optics and Precision Engineering, 2016,24(10s): 35-40
鲁远甫, 谢仕永, 刘艳等. 高功率窄线宽微秒脉冲1 064 nm环形腔激光[J]. 光学精密工程, 2016,24(10s): 35-40 DOI： 10.3788/OPE.20162413.0035.

LU Yuan-fu, XIE Shi-yong, LIU Yan etc. High-power narrow linewidth microsecond pulse 1064 nm ring laser[J]. Editorial Office of Optics and Precision Engineering, 2016,24(10s): 35-40 DOI： 10.3788/OPE.20162413.0035.

摘要

为了实现高效和频的高功率准连续波钠信标激光，对抑制驰豫振荡的高功率窄线宽微秒脉冲1064 nm环形腔激光进行了研究。采用热近非稳腔设计优化了三镜环形腔的腔镜曲率，腔内插入标准具压窄激光线宽。1 064 nm薄膜偏振片用作环形腔的输出镜，与半波片配合实现输出耦合率的连续可调。在808 nm半导体激光泵浦功率为175 W的条件下，获得了输出功率为42 W、光束质量因子

=1.26、线宽为0.2 GHz的1 064 nm激光输出，重复频率为800 Hz，脉冲宽度为100

s。腔内插入1 064 nm的倍频晶体KTiOPO

，利用二次谐波效应使高强度的尖峰脉冲序列快速减弱，实现了激光脉冲驰豫振荡的有效抑制。整个系统结构简单、易实现，为获得消驰豫振荡的准连续波1 064 nm激光提供了实用有效的技术手段。

Abstract

In order to realize high-power quasi-continuous wave sodium beacon laser with high-efficiency sum frequency

1064 nm ring-cavity laser of high-power narrow-linewidth microsecond pulse which restrains relaxation oscillation was studied. A thermally near unstable cavity was adoped to optimize curvature of three-scope ring endoscope

inserting an etalon in cavity to narrow laser linewidth. Using a 1064 nm thin-film polaroid as output mirror of ring cavity and a half wave plate

a continuous adjustable output coupling ratio was realized. Under the condition of 808 nm semiconductor laser with pumping power of 175 W

1 064 nm laser output with output power of 42 W

beam quality factor

=1.26

linewidth of 0.2 GHz was acquired. Its repetition frequency is 800 Hz and pulse width is 100

s. The relaxation oscillation of laser pulse was effectively suppressed by inserting 1 064 nm frequency-doubling crystal KTiOPO4 in cavity and using second harmonic effect to rapid weaken high-strength spike pulse sequence.The whole system is pretty simple

which provides the practical and effective technical method for obtaining 1064 nm laser of quasi-continuous wave without relaxation oscillation.

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Keywords

references

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