1941 nm Q-switched thulium-doped fiber laser with a multi-layer black phosphorus saturable absorber

Latiff, A.A. and Rusdi, M.F.M. and Jusoh, Z. and Yasin, M. and Ahmad, Harith and Harun, Sulaiman Wadi (2016) 1941 nm Q-switched thulium-doped fiber laser with a multi-layer black phosphorus saturable absorber. Optoelectronics and Advanced Materials-Rapid Communications, 10 (11-12). pp. 801-806. ISSN 1842-6573,

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We demonstrate a Q-switched Thulium-doped fiber laser (TDFL) operating at 1941 nm region based on multi-layer black phosphorous (BP) as a saturable absorber (SA). The BP-based SA was prepared by mechanically exfoliating BP crystal and fixing the acquired BP flakes onto the scotch tape. A small piece of the tape was then sandwiched between two ferrules and incorporated in TDFL cavity to achieve stable Q-switched operation in conjunction with 1552 nm core pumping. The pulse repetition rate of the laser could be varied from 15.32 to 27.82 kHz, by tuning the pump power from 495 to 645 mW. At 645 mW pump power, the laser showed the average output power, pulse energy, and pulse width of 14 mW, 0.50 μJ, and 4.38 µs, respectively. Our results show that multi-layer BP is a promising SA for Q-switching laser operation in 2-micron region.

Item Type: Article
Funders: Ministry of Higher Education Grant Scheme (FRGS/1/2015/ SG02/UITM/03/3), PPP University of Malaya Grant Scheme (PG098-2014B)
Uncontrolled Keywords: Q-switched; Fiber laser; Black phosphorus; Thulium-doped fiber
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 27 Sep 2017 03:42
Last Modified: 02 Jan 2019 04:48
URI: http://eprints.um.edu.my/id/eprint/17823

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