Passive Q-switched erbium-doped fiber laser withtungsten disulfide as saturable absorber

Sharifudin, Hanisah Natasha (2022) Passive Q-switched erbium-doped fiber laser withtungsten disulfide as saturable absorber. [Project Paper] (Submitted)

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Abstract

In this research project, a passive Q-switched erbium-doped fiber laser with tungsten disulfide as saturable absorber in C-band wavelength region is demonstrated. Tungsten disulfide nanoparticles (WS2) are partially soluble in water and acidic solutions. WS2 is a semiconductor with a tuneable direct-indirect bandgap rangingfrom 1.3 to 2.1 eV. Due to its semiconductor properties, tungsten disulfide (WS2) has a unique band structure among TMDs, with broadband spectrum response, ultra-fast bleach recovery time, and outstanding saturable light absorption. In this studies, tungsten disulfide is deposited onto fiber ferrule with mechanical imprinting technique. The repetition rate is tuned within 8.404kHz to 15.53kHz when the pump power increase from 80.1mW to 126.7mW. The lowest pulse width is 11.7μs and the maximum single pulse energy of 80.7nJ is obtained at the pump power of 126.7mW.

Item Type:	Project Paper
Faculty:	Fakulti Sains
Depositing User:	Ms. ROHANA ALIAS
Date Deposited:	25 Jun 2024 10:20
Last Modified:	25 Jun 2024 10:20
URI:	http://psaspb.upm.edu.my/id/eprint/1994

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