Latiff, A A and Cheng, X S and Rusdi, M F M and Paul, Mukul Chandra and Harun, S W and Ahmad, H (2018) Molybdenum disulfide saturable absorber for eye-safe mode-locked fiber laser generation. Journal of Nonlinear Optical Physics & Materials, 27 (1). Article No-1850010. ISSN 0218-8635

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Abstract

We demonstrated an all-fiber mode-locked Thulium-Holmium co-doped fiber laser (THDFL) based on molybdenum disulfide (MoS2) tape saturable absorber. The THDFL generates a mode-locked pulse in anomalous regime at 1,979nm using 5m long Thulium-Holmium co-doped (THDF) as a gain medium. Through mechanical exfoliation method, the MoS2 was mechanically extracted from a commercial MoS2 crystal by using a clear scotch tape. Through balanced twin-detector measurement, the obtained MoS2 tape has a nonlinear absorption of 10% with 100MW/cm(2) saturation intensity. Under 775mW to 852mW pump power, a stable pulse train was obtained at 9.12MHz repetition rate with a signal-to-noise ratio (SNR) of 45 dB. The maximum output power and pulse energy were measured about 20mW and 2.2 nJ, respectively. With a 3-dB spectral bandwidth of 2.1 nm, the minimum possible pulse width was determined as 1.97 ps.

Item Type:	Article
Subjects:	Processing Science
Divisions:	Fiber Optics and Photonics
Depositing User:	Bidhan Chaudhuri
Date Deposited:	05 Sep 2018 05:42
Last Modified:	05 Sep 2018 05:42
URI:	http://cgcri.csircentral.net/id/eprint/4309

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