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Optical Engineering

Tungsten diselenide Q-switched erbium-doped fiber laser
Author(s): Bohua Chen; Xiaoyan Zhang; Chaoshi Guo; Kan Wu; Jianping Chen; Jun Wang
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Paper 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.

Paper Details

Date Published: 27 January 2016
PDF: 5 pages
Opt. Eng. 55(8) 081306 doi: 10.1117/1.OE.55.8.081306
Published in: Optical Engineering Volume 55, Issue 8
Show Author Affiliations
Bohua Chen, Shanghai Jiao Tong Univ. (China)
Xiaoyan Zhang, Shanghai Institute of Optics and Fine Mechanics (China)
Chaoshi Guo, Shanghai Jiao Tong Univ. (China)
Kan Wu, Shanghai Jiao Tong Univ. (China)
Jianping Chen, Shanghai Jiao Tong Univ. (China)
Jun Wang, Shanghai Jiao Tong Univ. (China)

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