Stable and wavelength-locked Q-switched narrow-linewidth Er: YAG laser at 1645 nm

被引：22
|
作者：
Tang, Pinghua [1 ]
Liu, Jun [2 ]
Huang, Bin [1 ]
Xu, Changwen [2 ]
Zhao, Chujun [1 ,3 ]
Wen, Shuangchun [1 ,3 ]
机构：
[1] Hunan Univ, Sch Phys & Elect, Key Lab Micro Nanooptoelect Devices, Minist Educ, Changsha 410082, Hunan, Peoples R China
[2] Shenzhen Univ, Coll Optoelect Engn, SZU NUS Collaborat Innovat Ctr Optoelect Sci & Te, Key Lab Optoelect Devices & Syst,Minist Educ & Gu, Shenzhen 518060, Peoples R China
[3] Shanghai Jiao Tong Univ, IFSA Collaborat Innovat Ctr, Shanghai 200240, Peoples R China
来源：
OPTICS EXPRESS | 2015年 / 23卷 / 09期
关键词：
HIGH-REPETITION-RATE; CERAMIC ERYAG LASER; HIGH-POWER; HIGHLY EFFICIENT; PUMPED ER; VOLUME; OPERATION;
D O I：
10.1364/OE.23.011037
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A stable and wavelength-locked Q-switched narrow-linewidth Er: YAG laser with compact cavity structure, utilizing a volume Bragg grating (VBG) as a wavelength selector and a pump input mirror simultaneously, is reported. It yields high energy nanosecond pulse with pulse duration of 185 ns and pulse energy of 1.36 mJ at 1 kHz pulse repetition frequency for incident pump power of 21.6 W. The central wavelength of the Er: YAG laser is locked at 1645.3 nm with a spectral 3-dB linewidth of less than 0.08 nm, which coincides to the methane (CH4) absorption-line. The output has near diffraction-limited beam quality with M-2 parameter of 1.08. Our work may provide an inroad for developing more miniaturized space-based integrated path differential absorption (IDPA) lidar transmitter. (C)2015 Optical Society of America
引用
收藏
页码：11037 / 11042
页数：6
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