All-fiber ytterbium doped Q-switched fiber laser based on copper nanoparticles saturable absorber

Muhammad, Ahmad Razif and Yasin, Moh and Ahmad, Mushtaq T. and Zakaria, Rozalina and Rahim, Hazli Rafis Abdul and Jusoh, Zulzilawati and Arof, Hamzah and Harun, Sulaiman Wadi (2018) All-fiber ytterbium doped Q-switched fiber laser based on copper nanoparticles saturable absorber. Digest Journal of Nanomaterials and Biostructures, 13 (1). pp. 279-284. ISSN 1842-3582

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Official URL: http://www.chalcogen.ro/279_MuhammadAR.pdf

Abstract

The Q-switching pulses generation in an Ytterbium-doped fiber laser (YDFL) passively Qswitched by a copper nanoparticles (CuNP) based saturable absorber (SA) was experimentally demonstrated. The high-quality SA with a modulation depth of 36% was fabricated by depositing nano-sized particles of Cu layer onto the surface of polyvinyl alcohol (PVA) film through the thermal evaporation process. By inserting the SA into a YDFL cavity, stable Q-switched operation was achieved with the maximum pulse energy up to 7.48 nJ, the shortest pulse width of 3.89 µs and pulse repetition rates varying from 41 to 104 kHz. These results suggested that CuNP could be developed as an effective SA for pulsed laser operation at 1 µm.

Item Type: Article
Uncontrolled Keywords: Copper nanoparticle; Passive saturable absorber; Q-switching; YDFL
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: 09 May 2019 07:54
Last Modified: 09 May 2019 07:54
URI: http://eprints.um.edu.my/id/eprint/21205

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