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- Title
Tungsten diselenide Q-switched erbium-doped fiber laser.
- Authors
Bohua Chen; Xiaoyan Zhang; Chaoshi Guo; Kan Wu; Jianping Chen; Jun Wang
- 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.
- Subjects
TUNGSTEN compounds synthesis; Q-switching; FIBER lasers
- Publication
Optical Engineering, 2016, Vol 55, Issue 8, p081306-1
- ISSN
0091-3286
- Publication type
Article
- DOI
10.1117/1.OE.55.8.081306