期刊
OPTICS EXPRESS
卷 25, 期 22, 页码 26500-26507出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.25.026500
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资金
- National Natural Science Foundation of China (NSFC) [51402316]
- National Key Research and Development Program of China [2016YFB0402103]
266 nm laser output in NaSr3Be3B3O9F4 crystal by the fourth harmonic generation process with a picosecond mode-locked Nd-based YAG laser has been done for the first time. When the input pumping energy was 870 mu J at 532 nm, a 280 mu J 266 nm UV laser was obtained and the corresponding conversion efficiency was 35.9%. Further investigations identified that NaSr3Be3B3O9F4 has a large acceptance angle width of 0.47 (mrad center dot cm), a small walk-off angle of 35.43 mrad and a large d(eff) as 0.62 pm/V for the fourth harmonic generation. These results indicate that NSBBF is applicable for high-power 266 nm laser generation. (C) 2017 Optical Society of America
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