Special Section on 2-D Materials for Optics and Photonics

Tungsten diselenide Q-switched erbium-doped fiber laser

[+] Author Affiliations
Bohua Chen, Chaoshi Guo, Kan Wu, Jianping Chen

Shanghai Jiao Tong University, Department of Electronic Engineering, State Key Laboratory of Advanced Optical Communication Systems and Networks, Dongchuan Road 800, Shanghai 200240, China

Xiaoyan Zhang, Jun Wang

Chinese Academy of Sciences, Shanghai Institute of Optics and Fine Mechanics, Key Laboratory of Materials for High-Power Laser, Qinghe Road 390, Shanghai 201800, China

Opt. Eng. 55(8), 081306 (Jan 27, 2016). doi:10.1117/1.OE.55.8.081306
History: Received November 30, 2015; Accepted January 7, 2016
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Abstract.  We report a tungsten diselenide (WSe2) polyvinyl alcohol (PVA)-based, saturable absorber and related experiment results of a Q-switched fiber laser. WSe2-PVA film is synthesized by liquid phase exfoliation method, and its saturable absorption is measured via a nonlinear transmission experiment. The result shows that WSe2-PVA saturable absorber has a modulation depth of 3.5%, which means it has potential for generating an ultrafast pulse laser. We apply this absorber into a ring-cavity erbium-doped fiber laser and obtain Q-switched pulses under appropriate pump power. Our work demonstrates the reliable nonlinear optical characteristics of WSe2 and the feasibility for this two-dimensional material to be applied in the field of nonlinear optics.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Bohua Chen ; Xiaoyan Zhang ; Chaoshi Guo ; Kan Wu ; Jianping Chen, et al.
"Tungsten diselenide Q-switched erbium-doped fiber laser", Opt. Eng. 55(8), 081306 (Jan 27, 2016). ; http://dx.doi.org/10.1117/1.OE.55.8.081306


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