Pulse propagation in a random medium is studied through the calculation of the two-frequency mutual coherence function. An exact integral representation is formulated for the two-frequency mutual coherence function of a Gaussian beam pulse propagating in a weakly fluctuating random medium. Based on the modified von Karman spectrum for refractive-index fluctuations, an analytic approximation to the integral representation is presented and compared with exact numerical results.
© 1996 Optical Society of America
C. Y. Young, A. Ishimaru, and L. C. Andrews, "Two-frequency mutual coherence function of a Gaussian beam pulse in weak optical turbulence: an analytic solution," Appl. Opt. 35, 6522-6526 (1996)