Tunable Q-switched thulium-doped fiber laser (TDFL) in 2.0 µm region based on gallium selenide saturable absorber

Ahmad, Harith and Reduan, Siti Aisyah (2018) Tunable Q-switched thulium-doped fiber laser (TDFL) in 2.0 µm region based on gallium selenide saturable absorber. Optics & Laser Technology, 105. pp. 10-14. ISSN 0030-3992

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Official URL: https://doi.org/10.1016/j.optlastec.2018.02.031

Abstract

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 µm 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 µs 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 µm region.

Item Type: Article
Uncontrolled Keywords: Passively Q-switched; Thulium-doped fiber laser; Gallium selenide (GaSe); Saturable absorber; 2.0 µm region fiber laser
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Deputy Vice Chancellor (Research & Innovation) Office > Photonics Research Centre
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 07 Oct 2019 02:31
Last Modified: 07 Oct 2019 02:31
URI: http://eprints.um.edu.my/id/eprint/22672

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