Bismuth oxide nanoflakes for passive Q-switching in a C-band erbium doped fiber laser

Ahmad, Harith and Aidit, Siti Nabila and Yusoff, Norazriena (2018) Bismuth oxide nanoflakes for passive Q-switching in a C-band erbium doped fiber laser. Infrared Physics & Technology, 95. pp. 19-26. ISSN 1350-4495, DOI

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In this work, bismuth oxide (Bi2O3) nanoflakes suspended in a polyvinyl alcohol (PVA) host are used as a saturable absorber (SA) in an erbium-doped fiber laser (EDFL). The facile hydrothermal method is employed to synthesize the Bi2O3 nanoflakes as the SA, which provides stable Q-switching at a central wavelength of 1564 nm with a maximum pulse energy of 21.31 nJ. The generated pulses have repetition rates of 28.41–49.51 kHz and pulse widths of 4.9–1.55 µs over the available pump power range. The Bi2O3-PVA based SA also has a high signal-to-noise ratio (SNR) of 51.28 dB, indicating a significantly stable output and demonstrating the high potential of the fabricated Bi2O3-PVA film for practical applications. To the best of the author's knowledge, this is the first report of the use of a Bi2O3-PVA based SA for Q-switching in a C-band EDFL region.

Item Type: Article
Funders: Ministry of Higher Education, (MOHE) Malaysia for funding this research under the grants LRGS (2015) NGOD/UM/KPT and GA 010 – 2014 (ULUNG), University of Malaya for funding this research under the grant RU 001-2017
Uncontrolled Keywords: Bismuth oxide; Transition metal oxide; Saturable absorber; Passively Q-switched; Erbium doped fiber; C-band
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Deputy Vice Chancellor (Research & Innovation) Office > Photonics Research Centre
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 07 Oct 2019 09:05
Last Modified: 07 Oct 2019 09:05

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