Tunable passively Q-switched ytterbium-doped fiber laser with mechanically exfoliated GaSe saturable absorber

Ahmad, Harith and Aidit, Siti Nabila and Ooi, Shok Ing and Tiu, Zian Cheak (2018) Tunable passively Q-switched ytterbium-doped fiber laser with mechanically exfoliated GaSe saturable absorber. Chinese Optics Letters, 16 (2). 020014. ISSN 1671-7694

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Official URL: https://doi.org/10.3788/COL201816.020014

Abstract

A tunable passively Q-switched ytterbium-doped fiber laser using few-layer gallium selenide (GaSe) as a saturable absorber (SA) is demonstrated. The few-layer GaSe SA, which is fabricated by the mechanical exfoliation method, is able to generate a Q-switched fiber laser that has a maximum repetition rate of 92.6 kHz and a minimum pulsed width of 2.3 μs. The highest pulse energy exhibited by the generated pulse is 18.8 nJ with a signal to noise ratio of ∼40 dB. The tunability of the proposed laser covers from 1042 to 1082 nm, giving a tuning range of 40 nm.

Item Type: Article
Uncontrolled Keywords: Gallium selenides; Mechanical exfoliation; Passively Q-switched; Pulse energies; Q-switched fiber lasers; Repetition rate; Tuning ranges; Ytterbium-doped fiber lasers
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 00:57
Last Modified: 07 Oct 2019 00:57
URI: http://eprints.um.edu.my/id/eprint/22660

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