Passively Q-switched Ho:YAG laser with multilayer graphene-based saturable absorber

被引：0
|
作者：
Cui Z. [1 ]
Chen Y. [1 ]
Yao B.-Q. [1 ]
Duan X.-M. [1 ]
Shen Y.-J. [1 ]
Shen Z.-C. [1 ]
Lu J.-Y. [1 ]
Dai T.-Y. [1 ]
机构：
[1] National Key Lab of Tunable Laser Technology, Harbin Institute of Technology, Harbin
来源：
Yao, Bao-Quan (yaobq08@hit.edu.cn) | 1600年 / Editorial Office of Chinese Optics卷 / 37期
关键词：
Ho:YAG; Multilayer graphene; Passively Q-switched; Solid-state lasers;
D O I：
10.3788/fgxb20163706.0696
中图分类号：
学科分类号：
摘要：
A 2 μm passively Q-switched (PQS) Ho:YAG laser pumped by a Tm3+ fiber laser was demonstrated with a multilayer graphene as the saturable absorber. In the continuous wave (CW) mode, a 2.09 μm laser with the output power of 750 mW was obtained at the incident pump power of 4.2 W, corresponding to the slope efficiency of 29.6%. By inserting a multilayer graphene as the saturable absorber and adjusting the cavity, we achieved passively Q-switched laser pulses. The minimum pulse duration was obtained at the pump power of 4.2 W with the repetition rate of 66.6 kHz and the pulse width of 3.1 μs. The maximum output power of 170 mW was achieved, corresponding to the slope efficiency of 12.6%. The beam quality factors are Mx 2=1.15 and My 2=1.12, respectively. © 2016, Science Press. All right reserved.
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页码：696 / 700
页数：4
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