27 January 2016 Tungsten diselenide Q-switched erbium-doped fiber laser
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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.
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)
Bohua Chen, Bohua Chen, Xiaoyan Zhang, Xiaoyan Zhang, Chaoshi Guo, Chaoshi Guo, Kan Wu, Kan Wu, Jianping Chen, Jianping Chen, Jun Wang, Jun Wang, } "Tungsten diselenide Q-switched erbium-doped fiber laser," Optical Engineering 55(8), 081306 (27 January 2016). https://doi.org/10.1117/1.OE.55.8.081306 . Submission:


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