Abstract

We develop analytic equations that describe the mean and normalized variance of the coupling efficiency of Gaussian Schell-model beams into single-mode optical fibers. Numerical methods and computer simulations are used to evaluate the accuracy of the various approximations used in this analysis, and, with some insight, empirical compensation is made for the identified shortcomings. The simulations make use of both speckled and nonspeckled beams by employing two different Monte Carlo methods to generate randomly drawn optical fields. While the analytic approximations break down in certain cases, the use of empirical compensation demonstrated accuracies of better than 5% for the mean coupling efficiency in all cases, and generally better than 40% for the coupling efficiency variance. By optimizing the compensation for particular beam characteristics, even higher accuracies can be achieved.

© 2011 Optical Society of America

Scattering of a partially coherent Gaussian–Schell beam from a diffuse target in slant atmospheric turbulence

Zhen-Sen Wu and Ya-Qing Li
J. Opt. Soc. Am. A 28(7) 1531-1539 (2011)

Atmospheric optical communication with a Gaussian Schell beam

Jennifer C. Ricklin and Frederic M. Davidson
J. Opt. Soc. Am. A 20(5) 856-866 (2003)

Effects of coherence and polarization on the coupling of stochastic electromagnetic beams into optical fibers

Mohamed Salem and Govind P. Agrawal
J. Opt. Soc. Am. A 26(11) 2452-2458 (2009)

Twisted Gaussian Schell-model beams

R. Simon and N. Mukunda
J. Opt. Soc. Am. A 10(1) 95-109 (1993)

Mode expansion for Gaussian Schell-model beams with partially correlated modes

Baida Lü and Bin Zhang
J. Opt. Soc. Am. A 16(10) 2453-2458 (1999)