113-W in-phase mode output from two ytterbium-doped large-core double-cladding fiber lasers  

作　　者：何兵 楼祺洪 周军 郑颖辉 薛冬 董景星 魏运荣 张芳沛 漆云凤 朱健强 李进延 李诗愈 王之江 

机构地区：[1]Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences,Shanghai 201800 Graduate School of the Chinese Academy of Sciences,Beijing 100039 [2]Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences,Shanghai 201800 [3]Department of Physics Zaozhuang University,Zaozhuang 277160 [4]Fiberhome Telecommunication Tech Co. Ltd.,Wuhan 430073

出　　处：《Chinese Optics Letters》2007年第7期412-414,共3页中国光学快报（英文版）

基　　金：This work was supported by the National Major Fundamental Research Program(973)of China(No.61359020103);the National High Technology Research and Development Program(863)of China(No.2005AA802030).

摘　　要：Phase locking for two ytterbium-doped large-core fiber lasers has been demonstrated by using a selfimaging confocal resonator with a spatial filter. Steady high-contrast interference stripes are observed. The visibilities of coherent and incoherent stripes are 59% and 6%, respectively. The measured width of the central strip is in good agreement with the calculated result. For in-phase mode, the output power of the phase-locked fiber laser array is up to 113 W and corresponding slope efficiency is 38.5%.Phase locking for two ytterbium-doped large-core fiber lasers has been demonstrated by using a selfimaging confocal resonator with a spatial filter. Steady high-contrast interference stripes are observed. The visibilities of coherent and incoherent stripes are 59% and 6%, respectively. The measured width of the central strip is in good agreement with the calculated result. For in-phase mode, the output power of the phase-locked fiber laser array is up to 113 W and corresponding slope efficiency is 38.5%.

关 键 词：Imaging techniques Rare earth additions YTTERBIUM 

分 类 号：TN248[电子电信—物理电子学]