Chinese Optics Letters, 2019, 17 (1): 011402, Published Online: Jan. 17, 2019  

ReSe2 as a saturable absorber in a Tm-doped yttrium lithium fluoride (Tm:YLF) pulse laser

Author Affiliations
1 School of Physics Science and Engineering, Tongji University, Shanghai 200092, China
2 State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
3 University of Chinese Academy of Sciences, Beijing 100049, China
4 Jingjiang Photoelectric Technology Co., Ltd., Jinan 250000, China
Abstract
This study investigates the applicability of a few-layer structure ReSe2 as a saturable absorber (SA) for demonstrating a passively Q-switched pulse laser. The ReSe2 SA had a modulation depth of 6.86%. The Q-switched experiment was successful in delivering a maximum average output power of 180 mW at the wavelength of 1906.5 nm. The optimal pulse train had a pulse width of 1.61 μs and a repetition rate of 28.78 kHz. The experiment results verify that the few-layer structure ReSe2 could behave as an excellent SA at all-solid-state lasers, increasing the selection of SAs at near 2 μm lasers.

Chun Li, Yuxin Leng, Jinjin Huo. ReSe2 as a saturable absorber in a Tm-doped yttrium lithium fluoride (Tm:YLF) pulse laser[J]. Chinese Optics Letters, 2019, 17(1): 011402.

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