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

Saidin, Norraida and Zain, D.I.M and Hamida, Belal Ahmed and Khan, Sheroz and Ahmad, Harith and Dimyati, Kaharudin and Harun, Sulaiman Wadi (2013) A Q-Switched thulium-doped fiber laser with a graphene thin film-based saturable absorber. Laser Physics (International Journal), 23 (11). pp. 1-5. ISSN 1054-660X E-ISSN 1555-6611

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Abstract

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 �s 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 (Journal)
Additional Information:	3930/32425
Uncontrolled Keywords:	fiber laser, saturable absorber, fiber sensor, communication
Subjects:	T Technology > T Technology (General) > T10.5 Communication of technical information T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices > TK7885 Computer engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User:	dr Sheroz Khan
Date Deposited:	31 Oct 2013 10:30
Last Modified:	11 Apr 2017 15:03
URI:	http://irep.iium.edu.my/id/eprint/32425

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