Molybdenum gallium carbide saturable absorber as Q-switcher in an erbium-doped fibre laser
Document Type
Article
Publication Date
1-1-2024
Abstract
In this research work, molybdenum gallium carbide (Mo2Ga2C)-fabricated as a thin film via solution casting technique-was first introduced as a saturable absorber (SA) to regulate the intracavity losses in a Q-switched fibre laser. The fabricated Mo2Ga2C SA had undergone both optical and physical interpretations prior to its employment as a Q-switcher in an erbium-doped fibre laser (EDFL) ring cavity configuration, sandwiched in between the end-facets of the optical fibre ferrules. The Q-switched wavelength was observed at 1532.07 nm and the Q-switching parameters were determined, accordingly. The temporal parameters of Q-switched EDFL, which include the maximum pulse repetition rate, minimum repetition period and minimum pulse duration were indicated as 107.60 kHz, 9.29 mu s, and 5.52 mu s, correspondingly. The maximum output power, peak power and pulse energy of the Mo2Ga2C-PVA SA as the Q-switcher were 7.3 mW, 11.47 mW and 67.38 nJ, in accordance with a slope efficiency of 7.39 % and signal-to-noise (SNR) ratio of 57.6 dB.
Keywords
Molybdenum gallium carbide(Mo2Ga2C), Solution casting technique, Saturable absorber (SA), Q-switched, Erbium-doped fibre laser (EDFL)
Divisions
sch_ecs
Funders
Ministry of Higher Education Malaysia under Fundamental Research Grant Scheme [FRGS/1/2020/TK0/UTM/02/46]
Publication Title
Optical Fiber Technology
Volume
82
Publisher
Elsevier
Publisher Location
STE 800, 230 PARK AVE, NEW YORK, NY 10169 USA