期刊
OPTICS AND LASER TECHNOLOGY
卷 105, 期 -, 页码 10-14出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.optlastec.2018.02.031
关键词
Passively Q-switched; Thulium-doped fiber laser; Gallium selenide (GaSe); Saturable absorber; 2.0 mu m region fiber laser
资金
- Ministry of Higher Education, (MOHE) Malaysia under the grant LRGS NGOD/UM/KPT
- University of Malaya [RU 001-2017, RP 029A - 15 AFR]
A tunable Q-switched thulium-doped fiber laser (TDFL) using a Gallium Selenide (GaSe) based saturable absorber (SA) is proposed and demonstrated for operation in the 2.0 gm region. The Q-switched TDFL operates from 1960.0 nm to 1998.0 nm, covering a wavelength range of 38.0 nm. The generated output pulses have a repetition rate from 14.9 kHz to 40.9 kHz and minimum pulse width of 4.9 mu s at the maximum pump power of 126.6 mW, as well as a maximum pulse energy of 92.8 nJ. This is, to the author's knowledge, the first successful combination of a TDF and a GaSe based SA to generate tunable Q-switched pulses in 2.0 mu m region. (C) 2018 Elsevier Ltd. All rights reserved.
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