Mode coupling at the splice of diverse optical fibers

摘要

Method for mode coupling coefficient estimation of arbitrary order guided modes at the splice of diverse optical fibers under axial and angular misalignments is proposed. It is based on the well-known overlap integral method and modified Gaussian approximation been generalized for analysis of the weakly guiding optical fibers with an arbitrary axial-symmetric refractive index profile. Analytical expressions for the arbitrary order mode coupling coefficients under splice misalignments were developed. Some results of proposed method approbation are represented.