Graphene-based saturable absorber for passive Q-switching erbium doped fiber laser

Jasni, Nur Afiqah Husna and Zuikafly, Siti Nur Fatin and Ahmad, Fauzan and Abdullah, Mundzir and Wan Nawawi, Wan Mohd Fazli and Yahaya, Hafizal (2020) Graphene-based saturable absorber for passive Q-switching erbium doped fiber laser. In: 2020 IEEE International Conference on Semiconductor Electronics (ICSE), 28th-29th September 2020, Kuala Lumpur, Malaysia.

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Abstract

Q-switched erbium-doped fiber laser integrating graphene-based polymer composite is reported. Electrochemical exfoliation was used to synthesize graphene by immersing two graphite rods in solution containing 1% of sodium dodecyl sulfate (SDS) in de-ionized water. The supply for the electrochemical process is 20 V and the process took around 5 hours to produces suspension containing graphene flakes. The suspension is then mixed with chitin bio polymer composites to develop graphene-chitin film based passive Qswitcher. A small portion of the fabricated film was then integrated in erbium doped fiber laser in ring cavity for pulse laser generation. Pulsed laser with repetition rate of 67.39 kHz with 2.24 μs pulse width was generated. The laser output also has high pulse energy of 108.38 nJ with instantaneous peak power of 45.48 mW.

Item Type:	Conference or Workshop Item (Invited Papers)
Additional Information:	7777/83756
Uncontrolled Keywords:	ECE Graphene, Chitin, Q-switching
Subjects:	T Technology > T Technology (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User:	Wan Mohd Fazli Wan Nawawi
Date Deposited:	16 Oct 2020 15:55
Last Modified:	16 Oct 2020 15:55
URI:	http://irep.iium.edu.my/id/eprint/83756

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