Graphene filament-chitin bio-composite polymer based passive Q-switcher in EDFL with Tunable Wavelength

Zuikafly, Siti Nur Fatin and Ahmad, Harith and Shafie, Suhaidi and Nawawi, Wan Mohd Fazli Wan and Ibrahim, Mohd Haniff and Ahmad, Fauzan (2022) Graphene filament-chitin bio-composite polymer based passive Q-switcher in EDFL with Tunable Wavelength. In: 4th International Symposium on Advanced Materials and Nanotechnology, iSAMN 2020.

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The generation of pulsed fiber laser and its wavelength tunability using graphene based three-dimensional (3D) printer filament embedded in chitin bio-polymer as passive saturable absorber (SA) in the 1.5 um region was successfully demonstrated. The SA was prepared by extruding the graphene filament through a 3D printer nozzle before mixing it with tetrahydrofuran (THF) in order to dissolve the plastic component. The graphene in THF suspension was then mixed with chitin nanofiber (ChNF) through sonication. The film was formed as the mixture was let dry for 36 hours. The self-started Q-switching operation was kept stable within the input pump power of 9.07 mW to 69.47 mW, with maximum repetition rate and pulse duration of 111.05 kHz and 1.11 us, respectively. By introducing a tunable bandpass filter (TBF) into the cavity, the Q-switched lasing started at 13.60 mW with operating wavelength tunable from 1510 nm to 1564 nm, covering a wavelength range of approximately 54 nm. © 2022 American Institute of Physics Inc.. All rights reserved.

Item Type: Conference or Workshop Item (Paper)
Funders: None
Uncontrolled Keywords: Saturable Absorbers; Pulse Repetition Rate; Mode-locked Fiber Lasers
Subjects: Q Science > QC Physics
Divisions: Deputy Vice Chancellor (Research & Innovation) Office > Photonics Research Centre
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 02 Nov 2023 02:44
Last Modified: 02 Nov 2023 02:44

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