材料科学
光学
能量转换效率
二次谐波产生
铌酸锂
波导管
激光器
绿灯
光电子学
非线性光学
质子
连续波
制作
和频产生
蓝光
物理
替代医学
病理
医学
量子力学
作者
Yunfei Niu,Lei Yang,Dongjie Guo,Yan Chen,Xiaoyang Li,Gang Zhao,Xiao Hu
出处
期刊:Chinese Optics Letters
[Shanghai Institute of Optics and Fine Mechanics]
日期:2020-01-01
卷期号:18 (11): 111902-111902
被引量:13
标识
DOI:10.3788/col202018.111902
摘要
We report efficient generation of 671 nm red light based on quasi-phase-matched second harmonic generation of 1342 nm in LiNbO3 waveguides. The design method and fabrication process of the high-quality annealed proton-exchanged periodically poled channel waveguides were presented. A continuous-wave 1.71 mW red light was obtained with a single-pass conversion efficiency of 47%·W-1·cm-2, which is 88% that of the theoretical value. While for 1 mW quasi-continuous-laser input, the corresponding peak power being 2 W, the conversion efficiency reached up to 60%. Our results indicate that the annealed proton-exchanged periodically poled LiNbO3 waveguide is promising for high-efficiency and low power consumption nonlinear generation of visible light.
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