Nickel oxide nanoparticles as a saturable absorber for an all-fiber passively Q-switched erbium-doped fiber laser

Nady, A. and Ahmed, Mahmoud Hazzaa M. and Latiff, Anas Abdul and Numan, Arshid and Raymond Ooi, C.H. and Harun, Sulaiman Wadi (2017) Nickel oxide nanoparticles as a saturable absorber for an all-fiber passively Q-switched erbium-doped fiber laser. Laser Physics, 27 (6). 065105. ISSN 1054-660X

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Official URL: https://doi.org/10.1088/1555-6611/aa6bd7

Abstract

Nickel oxide (NiO) nanoparticles were synthesized by a facile sonochemical method to fabricate saturable absorber (SA) composite film with a modulation depth of 39% and saturation intensity of 0.025 MW cm-2. By inserting the NiO SA into a laser cavity, a stable Q-switched operation is achieved at 1561.2 nm. The laser has a pump threshold of 25 mW, a pulse repetition rate tunable from 19.57 to 52.18 kHz, a high signal-to-noise ratio of 55 dB and a minimum pulse duration of 5.2 μs. Such results imply that NiO nanoparticles are a comparable candidate for an SA in passively Q-switched fiber lasers at a low pump intensity. To the best of our knowledge, this is the first demonstration of a fiber laser based on NiO SA.

Item Type: Article
Uncontrolled Keywords: Fiber lasers; Optical absorption; Q-switching
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Faculty of Science > Dept of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 23 Nov 2018 08:50
Last Modified: 23 Nov 2018 08:50
URI: http://eprints.um.edu.my/id/eprint/19731

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