A Q-switched thulium-doped fiber laser with a graphene thin film based saturable absorber

Saidin, N. and Zen, D.I.M. and Hamida, B.A. and Khan, S. and Ahmad, Harith and Dimyati, K. and Harun, Sulaiman Wadi (2013) A Q-switched thulium-doped fiber laser with a graphene thin film based saturable absorber. Laser Physics, 23 (11). pp. 1-5. ISSN 1054-660X, DOI https://doi.org/10.1088/1054-660X/23/11/115102.

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Official URL: https://doi.org/10.1088/1054-660X/23/11/115102


We demonstrate a simple, compact and low cost Q-switched thulium-doped fiber laser (TDFL) operating at 1844.1 nm by exploiting a graphene based saturable absorber (SA) in conjunction with 1552 nm pumping. The SA is fabricated by sandwiching the graphene thin film between two fiber connectors. The thin film was produced by mixing graphene flakes, synthesized by an electrochemical exfoliation process, with polyethylene oxide (PEO) solution. The TDFL generates a stable pulse train with 6.73 kHz repetition rate, 11.41 μs pulse width and 90.64 nJ pulse energy at 513 mW 1552 nm pump power. A higher performance Q-switched TDFL is expected to be achieved with the optimization of the SA and laser cavity.

Item Type: Article
Uncontrolled Keywords: Q-switched thulium-doped fiber laser; Graphene thin film; Saturable absorber
Subjects: Q Science > Q Science (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Science
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 23 Oct 2015 08:45
Last Modified: 08 Apr 2019 04:55
URI: http://eprints.um.edu.my/id/eprint/14298

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