LD-side Pumping Nd:YVO4 High Repetition Rate UV Laser

CUI Jian-feng; DAI Qin; WU Xiao-jiao; LI Fu-jiu; LI Ye-qiu; WU Ri-na; YANG Fan

doi:10.3788/fgxb20194008.1011

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LD-side Pumping Nd:YVO₄ High Repetition Rate UV Laser

Device Fabrication and Physics | 更新时间：2020-08-12

- LD-side Pumping Nd:YVO₄ High Repetition Rate UV Laser
- Chinese Journal of Luminescence Vol. 40, Issue 8, Pages: 1011-1014(2019)
- 作者机构：
  
  1. 沈阳理工大学理学院,辽宁沈阳,110159
  2. 鞍山紫玉激光科技有限公司,辽宁鞍山,114000
- 作者简介：
- 基金信息：
  
  Supported by NSFC-Liaoning Province United Foundation(U1608259);National Natural S
- DOI：10.3788/fgxb20194008.1011
  CLC： TN248.1
- Received：07 September 2018，
  
  Revised：31 October 2018，
  
  Published Online：28 November 2018，
  
  Published：05 August 2019
- 稿件说明：
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崔建丰, 岱钦, 邬小娇等. LD侧面泵浦Nd:YVO4高重频紫外激光器[J]. 发光学报, 2019,40(8): 1011-1014

CUI Jian-feng, DAI Qin, WU Xiao-jiao etc. LD-side Pumping Nd:YVO4 High Repetition Rate UV Laser[J]. Chinese Journal of Luminescence, 2019,40(8): 1011-1014
崔建丰, 岱钦, 邬小娇等. LD侧面泵浦Nd:YVO4高重频紫外激光器[J]. 发光学报, 2019,40(8): 1011-1014 DOI： 10.3788/fgxb20194008.1011.

CUI Jian-feng, DAI Qin, WU Xiao-jiao etc. LD-side Pumping Nd:YVO4 High Repetition Rate UV Laser[J]. Chinese Journal of Luminescence, 2019,40(8): 1011-1014 DOI： 10.3788/fgxb20194008.1011.

摘要

研制了二极管（LD）侧面泵浦Nd:YVO

高重复频率355 nm紫外激光器，针对Nd:YVO

激光晶体的增益高、泵浦带宽宽的优点，激光器采用LD均匀三角侧面泵浦结构，利用声光调

方式，选用Ⅰ类和Ⅱ类相位匹配的LBO非线性晶体，设计了腔内三倍频V型谐振腔结构，获得了高重频、高增益的355 nm紫外激光输出。在泵浦LD电流为30 A、重复频率为20 kHz时，355 nm激光输出最大平均功率达到了8.5 W，激光脉冲宽度为37 ns，1 064 nm基频光到355 nm紫外激光的光-光转换效率为25.8%，紫外激光泵浦阈值约为16 A。

Abstract

The LD side-pumped Nd:YVO

high repetition rate 355 nm ultraviolet laser is developed. According to the advantages of high gain and wide pump bandwidth

LD side-pumped structure is designed in the pumping mode of the laser. Using the acousto-optic

-switched method and selecting the LBO nonlinear crystal with typeⅠand type Ⅱof phase matching

the V-resonance-cavity stucture of the intra-cavity triple frequency is designed. The output of 355 nm ultraviolet laser with high repetition rate and high gain is obtained. A maximum average output power at 355 nm of 8.5 W is obtained when the repetition rate is 20 kHz and the pump current is 30 A. Meanwhlie

the corresponding pulse width is 37 ns at 355 nm

the optical-optical conversion efficiency is 25.8% and the pumping threshold of the UV laser is about 16 A.

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Keywords

references

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