双曲余弦-高斯光束的相干模分解

Coherent-mode decomposition of Cosh-Gaussian beams

利用傅里叶变换和正交模系展开法,推导出了双曲余弦—晶斯光束的M2因子和归一化模系数的解析表达式,从而建立了双曲余弦-高斯光束的相干模分解理论。提出了一种在实验室中产生双曲余弦-高斯光束的简单方法。

Based on the Fourter transform method and the orthogonal basis mode expansion , analytical expressions tor the M^2 tactor and mode coherence coefficients of Cosh - Gaussian beams have been derived, thus the coherent - mode decompositions of Cosh - Gaussian beams have been made. A simple method has also been proposed to produce Cosh - Gaussion beams in the laboratory.