高功率光纤激光阵列被动相干组束技术研究  

Study on Passive Coherent Beam Combination Technology of High Power Fiber Laser Arrays

作　　者：周军[1] 何兵[1] 薛宇豪[1] 漆云凤[1] 刘驰[1] 丁亚茜[1] 刘厚康[1] 李震[1] 楼祺洪[1] 

机构地区：[1]中国科学院上海光学精密机械研究所上海市全固态激光器与应用技术重点实验室,上海201800

出　　处：《光学学报》2011年第9期251-259,共9页Acta Optica Sinica

基　　金：国家863计划(2011AA030201);国家重大科技专项(2010ZX04013);国家自然科学基金(60908011);上海科技启明星基金(09QB1401700)资助课题

摘　　要：对高功率光纤激光的被动相干组束技术进行了理论和实验研究。介绍了几种典型的被动相干组束技术,并对其功率可提升性进行了分析。详细报道了课题组在光反馈环形腔结构光纤激光相干组束方面的研究进展,研究分析了该相干组束技术的输出光谱特性和路数可提升性,建立了4路和8路高功率光纤放大器的相干组束系统,并分别实现了1062和1090 W的相干耦合激光输出。Passive coherent beam combination of high power fiber laser arrays is researched theoretically and experimentally.Some typical technologies of passive coherent beam combination of fiber laser arrays are introduced,and their power scaling is analyzed.The principle of passive coherent beam combination based on ring cavity is analyzed.The coherent output spectrum characteristics and array size scalability of the passively coherently phased fiber laser arrays are explored.High power passive phase locking of 4-channel and 8-channel fiber amplifier arrays with ring cavity are experimentally demonstrated,and the maximum coherent output powers are up to 1062 and 1090 W,respectively.

关 键 词：激光技术 光纤激光 相干组束 环形腔 

分 类 号：O436[机械工程—光学工程]