The axisymmetric modes in a longitudinal inhomogeneous SELFOC fiber

摘要

The authors consider the propagation characteristics and mode conversion of axisymmetric modes in an imperfect SELFOC fiber with longitudinal gradually varying dielectric constant K= epsilon / epsilon /sub 0/=K/sub 0/-K/sub 2/(z)r/sup 2/. An analytic solution which is expressed in terms of generalized Laguerre polynomials is found.