Tungsten disulfide saturable absorber for nanosecond pulses generation

Rosol, Ahmad Haziq Aiman and Mahyuddin, Mohamad Badrol Hisyam and Jusoh, Zulzilawati and Harun, Sulaiman Wadi (2019) Tungsten disulfide saturable absorber for nanosecond pulses generation. Nonlinear Optics, Quantum Optics, 51 (1-2). pp. 161-169. ISSN 1543-0537,

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Official URL: https://www.oldcitypublishing.com/journals/nloqo-h...


We fabricated tungsten disulfide (WS2) based saturable absorber (SA) and use this to passively mode-lock an Erbium-doped fiber laser (EDFL) and produce nanosecond pulses train. The SA was obtained by repeatedly dropping the WS2 solution onto microfiber to form a nanosheets layer after drying process. A stable nanoseconds pulses train operating at 1560 nm was successfully achieved by inserting the developed SA device into a 206.4 m long laser cavity. A stable 409 ns pulse is obtained at repetition rate of 965 kHz as the pump power was raised above the threshold of 150 mW pump power. The maximum pulse energy of 1.79 nJ was obtained at 193 mW pump power. The generated pulses are consistent and stable, which useful in many practical applications. ©2019 Old City Publishing, Inc.

Item Type: Article
Funders: University of Malaya (Grant No. FG006-17AFR)
Uncontrolled Keywords: nanoseconds pulses; tungsten disulfide; mode-locking
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: 29 Jan 2020 05:50
Last Modified: 29 Jan 2020 05:50
URI: http://eprints.um.edu.my/id/eprint/23628

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