Transition Metal Dichalcogenides (WS2 And MoS2) Saturable Absorbers For Mode-Locked Erbium-Doped Fiber Lasers

Kadir, N. A. A. and Ismail, E. I. and Abdul Latiff, Anas and Ahmad, H. and Arof, Hamzah and Harun, Sulaiman Wadi (2017) Transition Metal Dichalcogenides (WS2 And MoS2) Saturable Absorbers For Mode-Locked Erbium-Doped Fiber Lasers. Chinese Physics Letters, 34 (1). 014202-1. ISSN 0256-307X

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Abstract

We demonstrate an ultrafast fiber laser based on transition metal dichalcogenide materials which are tungsten disulfide (WS2) and molybdenum disulfide (MoS2) as saturable absorber (SA). These materials are fabricated via a simple drop-casting method. By employing WS2, we obtain a stable harmonic mode-locking at the threshold pump power of 184 mW, and the generated soliton pulse has 3.48 MHz of repetition rate. At the maximum pump power of 250 mW, we also obtain a small value of pulse duration, 2.43 ps with signal-to-noise ratio (SNR) of 57 dB. For MoS2 SA, the pulse is generated at 105 mW pump power with repetition rate of 1.16 MHz. However, the pulse duration cannot be detected by the autocorrelator device as the pulse duration recorded is 468 ns, with the SNR value of 35 dB.

Item Type:	Article
Subjects:	T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Electronics and Computer Engineering > Department of Telecommunication Engineering
Depositing User:	Mohd Hannif Jamaludin
Date Deposited:	16 Jul 2018 07:21
Last Modified:	16 Jul 2021 14:36
URI:	http://eprints.utem.edu.my/id/eprint/21284
Statistic Details:	View Download Statistic

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