Q-switched ytterbium-doped fiber laser with topological insulator-based saturable absorber

Al-Masoodi, Ahmed Hasan Hamood and Ahmad, Fauzan and Ahmed, Mahmoud Hazzaa M. and Arof, Hamzah and Harun, Sulaiman Wadi (2017) Q-switched ytterbium-doped fiber laser with topological insulator-based saturable absorber. Optical Engineering, 56 (5). 056103. ISSN 0091-3286

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Official URL: https://doi.org/10.1117/1.OE.56.5.056103

Abstract

A stable passive Q-switched ytterbium-doped fiber laser (YDFL) operating at 1057.4 and 1044.5 nm is demonstrated using two types of topological insulator-based saturable absorbers (SAs): bismuth (III) selenide (Bi2Se3) and bismuth (III) telluride (Bi2Te3). These materials are embedded in polyvinyl alcohol film and incorporated in the YDFL cavity. Using Bi2Se3 SA, the YDFL obtains a stable train of pulses with a repetition rate that is tunable from 48.83 to 102 kHz. Meanwhile, the corresponding pulse width decreases from 8.9 to 3.48 μs as the pump power increases from 67.6 to 88.3 mW. For the Bi2Te3-based Q-switched YDFL, the repetition rate grows from 43.25 to 93.63 kHz and the pulse width shrinks from 5.65 to 2.01 μs as the 980-nm pump power rises from 72.8 to 98.4 mW. The maximum pulse energy is obtained with the Bi2Te3 SA at 29.95 nJ.

Item Type: Article
Uncontrolled Keywords: Bismuth (III) selenide saturable absorber; Bismuth (III) telluride; Q-switching; Topological insulator; Ytterbium-doped fiber laser
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 08 Jan 2019 09:07
Last Modified: 08 Jan 2019 09:07
URI: http://eprints.um.edu.my/id/eprint/19934

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