Tunable passively Q-switched ytterbium-doped fiber laser with mechanically exfoliated GaSe saturable absorber
Document Type
Article
Publication Date
1-1-2018
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.
Keywords
Gallium selenides, Mechanical exfoliation, Passively Q-switched, Pulse energies, Q-switched fiber lasers, Repetition rate, Tuning ranges, Ytterbium-doped fiber lasers
Divisions
photonics
Funders
Ministry of Higher Education, MOHE, under Grant LRGS (2015) NGOD/UM/KPT,University of Malaya, UM, for funding this work under Grant RU 001 – 2017
Publication Title
Chinese Optics Letters
Volume
16
Issue
2
Publisher
Chinese Laser Press