Dual-wavelength controllable Q-switched Nd:GSAG laser with molybdenum disulfide saturable absorber

The present work successfully demonstrated a passively Q-switched solid-state 1 µm Nd:GSAG laser using a few layer molybdenum disulfide (MoS2) saturable absorber. Controllable dual wavelengths of 1059.94 nm and 1062.3 nm were achieved in the experiment. We obtained the shortest pulse width of 217 ns...

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Bibliographic Details
Published in:Infrared physics & technology 2022-01, Vol.120, p.103970, Article 103970
Main Authors: Wen, Susu, Su, Xiancui, Wang, Yiran, Xie, Yiyan, Gao, Feilong, Kumar, Santosh, Zhang, Qingli, Zhang, Bingyuan
Format: Article
Language:English
Subjects:
Dual-wavelength laser
MoS2 saturable absorber
Nd:GSAG
Passively Q-switched
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Summary:The present work successfully demonstrated a passively Q-switched solid-state 1 µm Nd:GSAG laser using a few layer molybdenum disulfide (MoS2) saturable absorber. Controllable dual wavelengths of 1059.94 nm and 1062.3 nm were achieved in the experiment. We obtained the shortest pulse width of 217 ns and the highest pulse repetition frequency of 51.2 kHz. The pulse energy and peak power are 9.5 μJ and 43.7 W, respectively. To our knowledge, this is the first time that dual wavelengths with a controllable intensity ratio have been obtained in a Q-switched solid-state laser based on a MoS2 saturable absorber at 1 μm. The results demonstrate that MoS2 is a highly reliable optical modulator for dual wavelength laser applications.
ISSN:1350-4495
1879-0275
DOI:10.1016/j.infrared.2021.103970