强激光与粒子束, 2019, 31 (2): 020101, 网络出版: 2019-04-02
高功率半导体激光器倍频实现紫外光输出
Second harmonic generation of ultraviolet laser based on high power laser diode array
摘要
采用中心波长780 nm、线宽0.13 nm的体布拉格光栅外腔半导体激光作为基频光, 基于Ⅰ类相位匹配的三硼酸锂晶体(LBO), 获得了中心波长为390 nm的倍频光输出, 输出功率30 μW, 转换效率0.01%, 为高功率紫外光束的实现提供了新的技术路线。
Abstract
A 780 nm continuous-wave, which is output by extra-cavity semiconductor laser with a bulk bragg grating, is used as the fundamental input light source of the Second Harmonic Generation (SHG) system. Line width of the fundamental light is 0.13 nm. Based on the type I phase-matching and Lithium Triborate (LBO) crystal, 390 nm second harmonic is obtained. The emitted average output power is 30 μW (SHG efficiency is 0.01%). We provide a new technical route for the achievement of high-power UV beams.
胡列懋, 李志永, 刘松阳, 宁方晋, 谭荣清. 高功率半导体激光器倍频实现紫外光输出[J]. 强激光与粒子束, 2019, 31(2): 020101. Hu Liemao, Li Zhiyong, Liu Songyang, Ning Fangjin, Tan Rongqing. Second harmonic generation of ultraviolet laser based on high power laser diode array[J]. High Power Laser and Particle Beams, 2019, 31(2): 020101.