Graphene Oxide Film as Passive Q-switcher in Erbium-doped Fiber Laser Cavity

Mat, Fauziah Che and Yasin, Moh and Latiff, Anas Abdul and Harun, Sulaiman Wadi (2017) Graphene Oxide Film as Passive Q-switcher in Erbium-doped Fiber Laser Cavity. Photonics Letters of Poland, 9 (3). pp. 100-102. ISSN 2080-2242

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Official URL: https://doi.org/10.4302/plp.v9i3.755

Abstract

All-fiber passively Q-switched fiber lasers have been demonstrated by using a graphene oxide (GO) Q-switcher for possible applications in telecommunication, laser processing, fiber sensing and medicine. The GO material was obtained through a modified Hummers method from expanded acid washed graphite flakes and was embedded into a polyvinyl alcohol (PVA) film to form a saturable absorber (SA) device. The Q-switched pulse operates at 1563.3nm with a repetition rate that can be tuned from 44.33kHz to 61.77kHz as the pump power changes from 39mW to 96mW. The highest repetition rate of 61.77kHz is achieved at a pump power of 96mW and it is observed that the Q-switched pulse produced a maximum pulse energy of 0.054nJ and pulse width of 5.57μs at 96mW pump power.

Item Type: Article
Uncontrolled Keywords: Fiber lasers; Fibers; Graphene; Optical pumping; Oxide films; Pulse repetition rate; Saturable absorbers
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 27 Dec 2018 02:52
Last Modified: 27 Dec 2018 02:52
URI: http://eprints.um.edu.my/id/eprint/19820

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