Titanium dioxide fiber saturable absorber for Q-switched fiber laser generation in the 1-micrometer region

Harun, Sulaiman Wadi and Ab Rahman, Mohd Fauzi and Baharom, Mohamad Faizal and Mohd Rusdi, Muhammad Farid and Dimyati, Kaharudin and Pinninty, Harshavardhan Reddy and Paul, Mukul Chandra and Das, Shyamal and Dhar, Anirban and Abdul Latiff, Anas and Wang, Pengfei (2019) Titanium dioxide fiber saturable absorber for Q-switched fiber laser generation in the 1-micrometer region. Applied Optics, 58 (13). pp. 3495-3500. ISSN 1559-128X

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Abstract

A passively Q-switched ytterbium-doped fiber laser (YDFL) operating at 1062 nm was demonstrated by using a segment of 20 cm titanium dioxide-doped fiber saturable absorber (TiO 2 DF SA). The Q-switched YDFL emerged stably with tunable repetition rates ranging from 32 kHz to 53 kHz as the pump power rose from 109 mW to 233 mW. Within this range of pump power, a maximum output power of 10.1 mW, maximum peak power of 75 mW, and maximum pulse energy of 191 nJ were obtained. The narrowest pulse width of 2.55 μs was attained at the maximum pump power of 233 mW, while the signal-to-noise ratio of the fundamental frequency was 47 dB. This demonstration reveals that the proposed TiO 2 DF SA is feasible for constructing a flexible and reliably stable Q-switched pulsed fiber laser in the 1-micrometer region.

Item Type:	Article
Uncontrolled Keywords:	Fiber lasers, Fibers, Optical pumping, Oxides, Q switching, Saturable absorbers, Signal to noise ratio, Titanium dioxide
Divisions:	Faculty of Electronics and Computer Engineering
Depositing User:	Sabariah Ismail
Date Deposited:	08 Dec 2020 15:33
Last Modified:	15 Jun 2023 15:55
URI:	http://eprints.utem.edu.my/id/eprint/24595
Statistic Details:	View Download Statistic

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