Achieving strong doubling power by optical phase-locked Ti:sapphire laser and MOPA system  

作　　者：彭瑜 林百科 王强 赵阳 李烨 曹建平 方占军 臧二军 

机构地区：[1]Center of Time and Frequency Metrology,National Institute of Metrology [2]Department of Precision Instruments and Mechanology,Tsinghua University

出　　处：《Chinese Optics Letters》2012年第3期51-53,共3页中国光学快报（英文版）

基　　金：supported by the National Major Research Program China(No.2010CB922902);the National Key Technology R&D Program in the 11th Five-year Plan of China(No.2006BAK03A20);the National "973" Program of China(No.2005CB724501)

摘　　要：A high-power all-fiber single-frequency polarization-maintained（PM）laser operating at 1 083 nm is demonstrated using a master oscillator power amplifier（MOPA）structure.The seed source of this MOPA laser system is an in-house-built ring-cavity fiber oscillator.Four-stage amplification configuration is employed, in which the maximal output power of the main amplifier is 90.4 W,corresponding to a conversion efficiency of 72.5%.The polarization extinction ratio of the output light is 13 dB.The amplified spontaneous emission is suppressed by a factor of over 25 dB,and no stimulated Brillouin scattering effect is observed when a large-mode-area and high absorption coefficient PM gain fiber is employed.A high-power all-fiber single-frequency polarization-maintained（PM）laser operating at 1 083 nm is demonstrated using a master oscillator power amplifier（MOPA）structure.The seed source of this MOPA laser system is an in-house-built ring-cavity fiber oscillator.Four-stage amplification configuration is employed, in which the maximal output power of the main amplifier is 90.4 W,corresponding to a conversion efficiency of 72.5%.The polarization extinction ratio of the output light is 13 dB.The amplified spontaneous emission is suppressed by a factor of over 25 dB,and no stimulated Brillouin scattering effect is observed when a large-mode-area and high absorption coefficient PM gain fiber is employed.

关 键 词：Conversion efficiency Fibers Light sources POLARIZATION 

分 类 号：TN248[电子电信—物理电子学]