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Graphene oxide film as a passive q-switcher in an erbium-doped fiber laser cavity

Mat, Fauziah Che and Yasin, Moh and Latiff, Anas Abdul and Harun, Sulaiman Wadi (2017) Graphene oxide film as a passive q-switcher in an erbium-doped fiber laser cavity. Photonics Letters of Poland, 9 (3). pp. 100-102. ISSN 2080-2242

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Official URL: http://photonics.pl/PLP/index.php/letters/article/...

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 5.57 mu s at 96mW pump power.

Item Type:Article
Uncontrolled Keywords:telecommunication, laser processing
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:77505
Deposited By: Widya Wahid
Deposited On:24 Sep 2018 01:22
Last Modified:24 Sep 2018 01:22

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