M2-FACTOR AND COHERENT-MODE DECOMPOSITION OF SINH-GAUSSIAN BEAMS
双曲正弦高斯光束的M2因子和相干模分解

Based on the second moments method and orthogonal basis mode expansion,analytical expre-sions for the M2-factor and mode coherence coefficients of sinh-Gaussian beams have been derived,thus the coherent-mode decompositions of sinh-Gaussian beams have been made.A simple method has also been proposed to produce sinh-Gaussian beams in the laboratory.