Journal
OPTICAL MATERIALS EXPRESS
Volume 8, Issue 5, Pages 1213-1220Publisher
OPTICAL SOC AMER
DOI: 10.1364/OME.8.001213
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Funding
- NSFC [61405101, 61605098]
- Science and Technology Project of Qingdao [16-5-1-9-jch]
- Science and Technology Project for the Universities of Shandong Province [J17KA180]
- Shandong Provincial Natural Science Foundation, China [ZR2018BF028]
- China Postdoctoral Science Foundation [2016M600535]
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Multilayer WSe2 films were prepared by the liquid-phase exfoliation method and dispersed onto a YAG substrate. The obtained WSe2-SA was used to investigate a passively Q-switched Ho, Pr:LLF laser at 2.95 mu m. Under an absorbed pump power of 4.51 W, the shortest pulse duration of 571 ns was realized with an average output power of 147 mW and a repetition rate of 89.3 kHz, corresponding to a single pulse energy of 1.65 mu J and a peak power of 2.88 W. The results indicate that WSe2 is a promising candidate for application as a saturable absorber to generate mid-IR pulsed lasers at similar to 3 mu m. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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