Passive mode-locking in erbium-doped fibre laser based on BN-GO saturable absorber
Document Type
Article
Publication Date
1-1-2018
Abstract
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.
Keywords
Mode-locked fibre laser, saturable absorber, side-polished fibre, graphene oxide, boron nitride
Divisions
photonics
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
Publication Title
Journal of Modern Optics
Volume
65
Issue
21
Publisher
Taylor & Francis