Beam Recombination Characteristics in Array Laser Amplification Using Stimulated Brillouin Scattering Phase Conjugation
Beam Recombination Characteristics in Array Laser Amplification Using Stimulated Brillouin Scattering Phase Conjugation
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DOI：
10.1007/s10043-997-0277-9
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发表时间：
1997-04
期刊：
影响因子：
1.2
通讯作者：
H. Kong;Jae Yong Lee;Y. Shin;J. Byun;H. Park;Hyo-gun Kim
中科院分区：
文献类型：
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作者：
H. Kong;Jae Yong Lee;Y. Shin;J. Byun;H. Park;Hyo-gun Kim
对阵列激光器受激布里渊散射相位共轭放大中光束复合特性进行了数值研究。为了阐明由于不完全相位锁定引起的活塞误差的影响，基于瑞利-索末菲衍射理论计算了光束复合输出的近场和远场光强分布。分析表明，活塞误差严重影响光束复合输出的质量，应通过适当的相位锁定加以消除。研究还发现，分束-合束光楔之间的差距的影响可以忽略不计。
Beam recombination characteristics were numerically investigated in array laser amplification using stimulated Brillouin scattering phase conjugation. To clarify the effect of piston errors due to imperfect phase locking, spatial intensity profiles of the beam recombination output were calculated in both the near and the far field on the basis of Rayleigh-Sommerfeld diffraction theory. The analyses indicate that piston errors are seriously detrimental to the quality of a beam recombination output and should be eliminated by a proper phase locking. It is also found that the gap between the beam splitting-combining wedges has a negligible effect.