Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 29, Issue 5, Pages 470-473Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2017.2657325
Keywords
Diode-pumped; Q-switched; YVO4/Nd:YVO4 crystal; WS2 saturable absorber
Funding
- National Natural Science Foundation of China [61378022, 61475088]
- Fundamental Research Funds of Shandong University [2014JC032]
- Youth Future Project of Shandong University [2016WLJH25]
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By using WS2 as saturable absorber (SA), a diode-pumped passively Q-switched YVO4/Nd:YVO4 laser is demonstrated. Under the pump power of 6.28 W, a maximum output power of 1.36 W and minimum pulse duration of 56 ns with a repetition rate of 1.03 MHz are obtained, resulting in a peak power of as high as 23.6 W. So far as we know, it is the shortest pulse duration in Q-switched lasers with 2-D materials. The experimental results show that WS2 is an excellent SA for all-solid-state Q-switched lasers.
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