Copper oxide nanomaterial saturable absorber as a new passive Q-switcher in erbium-doped fiber laser ring cavity configuration

Sadeq, Sinan Abdulhameed and Al-Hayali, Sarah Kadhim and Harun, Sulaiman Wadi and Al-Janabi, Abdulhadi (2018) Copper oxide nanomaterial saturable absorber as a new passive Q-switcher in erbium-doped fiber laser ring cavity configuration. Results in Physics, 10. pp. 264-269. ISSN 2211-3797

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Official URL: https://doi.org/10.1016/j.rinp.2018.06.006

Abstract

A passively Q-switched erbium-doped fiber laser (EDFL) operating at 1560 nm is demonstrated by using a copper oxide (CuO) film as a saturable absorber (SA). The SA was prepared by embedding CuO nanoparticles (NPs) into a polyvinyl alcohol (PVA) by solution casting method. The CuO-SA has a modulation depth of 3.5% and a saturation intensity of 3.3 MW/cm2. By incorporating the CuO-SA into the laser cavity, stable Q-switched pulses were achieved at pump threshold of 70 mW. A maximum pulse energy of 66 nJ, tunable pulse repetition rate (P.R.R.) from 69 to 83 kHz, with a shortest pulse width of 2.6 µs were recorded at pump power of 159 mW. To the best of author's knowledge, this is the first demonstration of passively Q-switched EDFL based on CuO-SA.

Item Type: Article
Uncontrolled Keywords: Q-switched; Erbium doped fiber; Passive; CuO; Saturable absorber
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 09 Apr 2019 02:16
Last Modified: 09 Apr 2019 02:16
URI: http://eprints.um.edu.my/id/eprint/20839

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