Passive mode-locking in erbium-doped fibre laser based on BN-GO saturable absorber

Ahmad, Harith and Soltani, Soroush and Thambiratnam, Kavintheran and Yasin, Moh and Ismail, Mohammad Faizal and Tiu, Zian Cheak (2018) Passive mode-locking in erbium-doped fibre laser based on BN-GO saturable absorber. Journal of Modern Optics, 65 (21). pp. 2339-2349. ISSN 0950-0340, DOI

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A C-band mode-locked fibre laser incorporating a boron nitride-doped graphene oxide (BN-GO)-based saturable absorber (SA) is proposed and demonstrated. The SA is fabricated by depositing multiple layers of synthesized BN-GO nanoparticles onto the polished surface of a side-polished fibre, which is then inserted into an erbium-doped fibre laser cavity to generate the desired pulsed output. The strong nonlinear optical response and light absorption of the BN-GO nanoparticles induces the generation of a highly stable mode-locked pulse at 1567.32 nm with visible Kelly’s sidebands. The pulses have a measured repetition rate of 13.56 MHz and a pulse width of 1.18 ps at the maximum pump power of 280.5 mW. The pulses have a frequency signal-to-noise ratio of ∼53 dB, indicating a highly stable output. The proposed laser would find significant telecommunications applications, particularly for dense wavelength division multiplexing systems.

Item Type: Article
Funders: Ministry of Higher Education, Malaysia under the grants LRGS (2015) NGOD / UM / KPT and GA 010–2014 (ULUNG), University of Malaya under the grants RP 029B – 15 AFR and RU 001–2017
Uncontrolled Keywords: Mode-locked fibre laser; saturable absorber; side-polished fibre; graphene oxide; boron nitride
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: 08 Oct 2019 00:41
Last Modified: 08 Oct 2019 00:41

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