18 November 2014 High-power high-efficiency picosecond 355nm ultraviolet laser based on La2CaB10O19 crystal
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Abstract
A high-power high efficiency picosecond (ps) 355 nm ultraviolet (UV) laser was reported based on the nonlinear optical crystal of type-I phase-matching La2CaB10O19 (LCB) which possesses the characteristic of non-hygroscopicity. The high-power third harmonic generation was successfully achieved from a 1064 nm ps fundamental laser. The maximum output power of 7.81 W of 355 nm UV laser was obtained from 35.2 W 1064 nm ps laser (80 MHz repetition rate, 10 ps pulse width) with optical conversion efficiency of 22.2%. The experimental results show that the LCB crystal has a promising prospect in generating high-power high efficiency UV laser.
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Chao Yan, Yuye Wang, Degang Xu, Ling Zhang, Kai Li, Zhongxiao Li, Jiaqiang Li, Pengxiang Liu, Haijuan Yu, Guochun Zhang, Lirong Wang, Faxian Shan, Nan Wang, Baohua Wang, Ying Ying Yang, Xuechun Lin, Yicheng Wu, Jianquan Yao, "High-power high-efficiency picosecond 355nm ultraviolet laser based on La2CaB10O19 crystal", Proc. SPIE 9266, High-Power Lasers and Applications VII, 92661G (18 November 2014); doi: 10.1117/12.2074323; https://doi.org/10.1117/12.2074323
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