Influence of laser linewidth on external-cavity frequency doubling efficiency of a 1.56 μm master oscillator fiber power amplifier  

作　　者：田秀桃 李永民 刘勤 张宽收 

机构地区：[1]State Key Laboratory of Quantum Optics and Quantum Optics Devices,Institute of Opto-Electronics,Shanxi University

出　　处：《Chinese Physics B》2009年第6期2324-2327,共4页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant Nos 60527003,60608011 and 60878003);the State Key Program for Basic Research of China (Grant No 2007CB316501)

摘　　要：By using an external-cavity frequency-doubling master oscillator fiber power amplifier （MOPA）, a 700 mW continuous-wave single-frequency laser source at 780 nm is produced. It is shown that the frequency doubling efficiency is improved when the seed diode laser is optically locked to a resonant frequency of a confocal Fabry-Perot （F-P） cavity. This phenomenon can be attributed to the narrowing of the 1.56 μm laser linewidth and explained by our presented theoretical model. The experimental results are found to be in good agreement with the theoretical predictions.By using an external-cavity frequency-doubling master oscillator fiber power amplifier （MOPA）, a 700 mW continuous-wave single-frequency laser source at 780 nm is produced. It is shown that the frequency doubling efficiency is improved when the seed diode laser is optically locked to a resonant frequency of a confocal Fabry-Perot （F-P） cavity. This phenomenon can be attributed to the narrowing of the 1.56 μm laser linewidth and explained by our presented theoretical model. The experimental results are found to be in good agreement with the theoretical predictions.

关 键 词：laser linewidth external-cavity frequency doubling conversion efficiency 

分 类 号：TN722.75[电子电信—电路与系统]