Q-switched Ytterbium doped fibre laser using gold nanoparticles saturable absorber fabricated by electron beam deposition

Ahmad, Muhammad Taufiq and Muhammad, Ahmad Razif and Haris, Hazlihan and Rahim, Hazli Rafis Abdul and Zakaria, Rozalina and Ahmad, Harith and Harun, Sulaiman Wadi (2019) Q-switched Ytterbium doped fibre laser using gold nanoparticles saturable absorber fabricated by electron beam deposition. Optik, 182. pp. 241-248. ISSN 0030-4026, DOI https://doi.org/10.1016/j.ijleo.2019.01.010.

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Official URL: https://doi.org/10.1016/j.ijleo.2019.01.010

Abstract

A stable Q-switched Ytterbium doped fibre laser (YDFL) is demonstrated based on ring cavity by incorporating gold nanoparticles (AuNPs) based saturable absorber (SA). The SA is fabricated by depositing AuNPs onto polyvinyl alcohol thin-film surface using electron beam deposition technique. The proposed laser generates Q-switching pulses train as the pump power is increased beyond 61.1 mW. The laser operates at 1063.5 nm with the maximum repetition rate of 61.88 kHz and the thinnest pulse width of 4.23 μs are recorded at the 87.3 mW pump power. The output power increases linearly up to 3.14 mW, while the pulse energy varies from 10.55 nJ to 50.74 nJ as a pump power increased. Meanwhile, the maximum peak power of 12 mW is obtained at the pump power of 87.3 mW. © 2019 Elsevier GmbH

Item Type: Article
Funders: Universiti Teknikal Malaysia Melaka (grant no.: PJP/2018/FKEKK(1B)/S01613)
Uncontrolled Keywords: Passive Q-switching; Laser resonator; Fibre lasers
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Deputy Vice Chancellor (Research & Innovation) Office > Photonics Research Centre
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 20 May 2020 01:16
Last Modified: 20 May 2020 01:16
URI: http://eprints.um.edu.my/id/eprint/24354

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