Turbulence-induced quality degradation of partially coherent beams
Turbulence-induced quality degradation of partially coherent beams
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DOI：
10.1016/j.optcom.2005.03.007
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发表时间：
2005-07
影响因子：
2.4
通讯作者：
X. Ji;B. Lü
中科院分区：
文献类型：
--
作者：
X. Ji;B. Lü
以高斯-谢尔模型（GSM）光束作为部分相干光束的典型例子，推导了表征部分相干光束通过大气湍流传输的光束质量的均方束宽、桶内功率（PIB）、β参数和Strehl比的解析表达式，并从理论和数值上进行了说明。结果表明，湍流会导致光束质量的下降，部分相干光束受湍流的影响比完全相干光束小。
Taking the Gaussian Schell-model (GSM) beam as a typical example of partially coherent beams, closed-form expressions for the mean squared beam width, power in the bucket (PIB), β parameter, and Strehl ratio characterizing the beam quality of partially coherent beams propagating through atmospheric turbulence are derived and illustrated both theoretically and numerically. It is shown that the turbulence results in a degradation of the beam quality and partially coherent beams are less affected by the turbulence than fully coherent ones.