光纤激光器自组织相干阵列的理论分析  

Theoretic analysis on self-organized coherence of fiber laser array

作　　者：周朴[1] 侯静[1] 陈子伦[1] 刘泽金[1] 

机构地区：[1]国防科学技术大学光电科学与工程学院,长沙410073

出　　处：《强激光与粒子束》2007年第5期709-712,共4页High Power Laser and Particle Beams

基　　金：国家自然科学基金青年科学基金项目资助课题(60608008);国防科学技术大学科研项目资助课题(JC05-07-04)

摘　　要：分析了光纤激光器自相干阵列最简单的情况——两个光纤激光器之间的相位锁定过程。建立了该过程的数学模型,并对它的时间特性和输出光束的模式进行了理论和数值分析,讨论了运行频率差和耦合系数对锁相过程的影响。对于运行频率相等的两个光纤激光器,当两个光纤激光器初始相位差不为0时,相位锁定后的激光器阵列输出模式为异相模;对于运行频率不等的情形,给出了锁相运行对两个光纤激光器运行频率差的要求,并分析了降低这种要求的几种方法。Elementary theoretical investigation on self-organized fiber laser array was carried out in this paper. The simplest case for the fiber laser array, i. e. , the phase-locking course of two fiber lasers was modeled and analyzed theoretically and numer- ically. The effect of detuning frequency and coupling coefficient to the phase-locking course was analyzed. For the case that there was no frequency detuning, the array was always in out-of-phase mode. Otherwise, the condition of frequency detuning for phase locking was deduced, and the method for weakening the condition was analyzed in short.

关 键 词：光纤激光器 相干合成 自组织相干 激光器阵列 异相模 

分 类 号：TN248[电子电信—物理电子学]