Beam-propagation factor and mode-coherence coefficients of hyperbolic-cosine Gaussian beams.
Analytical expressions for the M(2) factor and the mode-coherence coefficients of hyperbolic-cosine- (cosh-) Gaussian beams have been derived, and a simple method of producing cosh-Gaussian beams in an experiment, superposition of two decentered Gaussian beams, has been proposed. Our results will be useful for studying more-general Hermite-sinusoidal-Gaussian beams.
Lü
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Institute of Laser Physics and Chemistry, Sichuan University, Chengdu 610064, China.
Zhang
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Ma
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