Journal
OPTICAL MATERIALS EXPRESS
Volume 7, Issue 4, Pages 1180-1187Publisher
OPTICAL SOC AMER
DOI: 10.1364/OME.7.001180
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Funding
- National Natural Science Foundation of China [61378022, 61475088]
- Youth Future Project of Shandong University [2016WLJH25]
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A few-layer WS2 nanosheet was prepared by the ultrasonic assisted vertical evaporation method and its corresponding characteristics were measured. By simultaneously employing the WS2 nanosheet and electro-optic modulator (EOM) as modulator, a dual-lossmodulation Q-switched and mode-locked (QML) Nd: Lu0.15Y0.85VO4 sub-nanosecond laser with controllable repetition rate and high peak power was presented. The output performances versus the pump power were measured. At the pump power of 8.92 W, the shortest pulse duration was measured to be about 467 ps, corresponding to a peak power of 731 kW. To our knowledge, this is the highest output peak power with WS2 saturable absorbers (SAs) reported. (C) 2017 Optical Society of America
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