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半导体抽运的Er∶YAG陶瓷单频脉冲激光器

Diode-Pumped Single-Frequency Er∶YAG Ceramic Pulsed Laser

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摘要

利用掺铒钇铝石榴石(Er∶YAG)单块非平面环形腔(NPRO)激光器作为种子源,通过注入锁定技术研制了半导体抽运的Er∶YAG陶瓷单频脉冲激光器。在重复频率为200 Hz的条件下,获得了脉冲能量为11.45 mJ、脉冲宽度为174 ns的1645 nm单频脉冲输出,在x和y方向上的M2因子分别为1.45和1.42,脉冲光与种子光拍频信号的频谱半峰全宽为2.67 MHz。实验表明,Er∶YAG陶瓷作为增益介质在产生1.6 μm激光方面具有较好的性能。此激光器可在激光雷达领域作为多普勒相干测风激光雷达和遥感激光雷达的光源。

Abstract

By using injection-locking technique, we develop a diode-pumped Er∶YAG ceramic single frequency pulsed laser seeded by an Er∶YAG nonplanar ring oscillator (NPRO) laser. The 1645 nm single frequency laser with output energy of 11.45 mJ, pulse width of 174 ns and pulse repetition rate of 200 Hz, is obtained. The corresponding M2-factors are 1.45 and 1.42 in x and y directions, respectively. The full width at half-maximum (FWHM) of the frequency spectrum of the heterodyne beating signal between the pulse and the seed is 2.67 MHz. The result indicates that Er∶YAG ceramics have good performance in generating 1.6 μm lasers. This single-frequency pulsed laser can be employed as the seed of coherent wind lidars and remote sensing lidars in the field of laser lidar.

Newport宣传-MKS新实验室计划
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中图分类号:TN248

DOI:10.3788/aos201838.0914003

所属栏目:激光器与激光光学

基金项目:国家重点研发计划(2017YFB0405203)

收稿日期:2018-03-19

修改稿日期:2018-04-21

网络出版日期:2018-05-25

作者单位    点击查看

王硕:北京理工大学光电学院, 北京 100081
史阳:北京理工大学光电学院, 北京 100081
李尚桦:北京理工大学光电学院, 北京 100081
宋睿:北京理工大学光电学院, 北京 100081
高明伟:北京理工大学光电学院, 北京 100081
王庆:北京理工大学光电学院, 北京 100081
高春清:北京理工大学光电学院, 北京 100081

联系人作者:高春清(gao@bit.edu.cn); 王硕(3120130287@bit.edu.cn);

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引用该论文

Wang Shuo,Shi Yang,Li Shanghua,Song Rui,Gao Mingwei,Wang Qing,Gao Chunqing. Diode-Pumped Single-Frequency Er∶YAG Ceramic Pulsed Laser[J]. Acta Optica Sinica, 2018, 38(9): 0914003

王硕,史阳,李尚桦,宋睿,高明伟,王庆,高春清. 半导体抽运的Er∶YAG陶瓷单频脉冲激光器[J]. 光学学报, 2018, 38(9): 0914003

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