Beam Quality and Power Scalability of Various Multicore Fiber Lasers  

作　　者：周朴 王小林 马阎星 马浩统 许晓军 刘泽金 

机构地区：[1]College of Optic-electric Science and Engineering, National University of Defense Technology, Changsha, Hunan 410073

出　　处：《Chinese Physics Letters》2009年第8期146-148,共3页中国物理快报（英文版）

摘　　要：Beam quality and power scalability analyses for various multicore fiber lasers （MFL） are presented. In-phase complex amplitude and corresponding far-field intensity distribution of each type of MFL is calculated using the finite-difference time-domain method. It is revealed that the hexagonal ring-type MFL has the best performance in power handling and maintaining beam quality. Further calculation indicates that power encircled in the diffraction-bucket of L-core MFL scales with no more than 0.4L, which chaJlenges the practical worthiness of fielding MFL with a large number of cores.Beam quality and power scalability analyses for various multicore fiber lasers （MFL） are presented. In-phase complex amplitude and corresponding far-field intensity distribution of each type of MFL is calculated using the finite-difference time-domain method. It is revealed that the hexagonal ring-type MFL has the best performance in power handling and maintaining beam quality. Further calculation indicates that power encircled in the diffraction-bucket of L-core MFL scales with no more than 0.4L, which chaJlenges the practical worthiness of fielding MFL with a large number of cores.

关 键 词：sea surface nonliear interaction numerical method 

分 类 号：O641.4[理学—物理化学] TN248[理学—化学]