光学学报, 2010, 30 (4): 1066, 网络出版: 2010-04-20
激光阵列部分相干合成的光束质量
Beam Quality of Partially Coherent Combining of Laser Array
激光光学 相干合成 部分相干合成 光束质量 相位控制 laser opotics coherent combining partially coherent combining beam quality phase control
摘要
由于单束激光部分相干性和相位控制系统带宽性能的限制,大功率激光阵列的相干合成一般只能取得部分相干合成的效果。对存在相位控制残差情形下部分相干合成光束在真空中的传输特性进行分析,推导激光阵列在远场光强的解析表达式。对单束激光的相干性以及相位控制残差对合成光束质量的影响进行了定量计算。
Abstract
Due to the partially coherence property of single laser beam and bandwidth of phase control system,partially combination is often obtained in coherent beam combining of high power lasers. The propagation property in free-space of partially coherent laser array in the case of residual phase error is analyzed,and the analytical expression of far-field intensity distribution is deduced. The influence of coherence of single laser beam and residual phase error on the combined beam quality is studied.
周朴, 王小林, 马阎星, 马浩统, 许晓军, 刘泽金. 激光阵列部分相干合成的光束质量[J]. 光学学报, 2010, 30(4): 1066. Zhou Pu, Wang Xiaolin, Ma Yanxing, Ma Haotong, Xu Xiaojun, Liu Zejin. Beam Quality of Partially Coherent Combining of Laser Array[J]. Acta Optica Sinica, 2010, 30(4): 1066.