Calculation of the acousto-optic coupling coefficients in optical fibers

We present a method to calculate the acousto-optic coupling coefficients between the guided modes of optical fibers in a standing acoustic wave. We show that our results are in excellent agreement with previously published experimental measurements. We also show that these acousto-optic coupling coefficients scale almost linearly with the acousto-optic frequency. (C) 2013 Published by Elsevier B.V.