Characterization of single‐mode graded‐index fibers: A new method based on transverse offset splice loss

Abstract

A method of characterization has been proposed for single‐mode graded‐index fibers using knowledge of the power transmission coefficient at the splice as a function of transverse offset. The method utilizes an analytical expression for the power transmission coefficient based on a highly accurate variational approximation for the LP01 mode developed earlier. The method accurately predicts the profile shape parameter and the normalized frequency of the fiber. © 1994 John Wiley & Sons, Inc.