Analysis of Nonuniform Nnonlinear Distributed Feedback Structures: GeneralizedTransfer Matrix Method

摘要

A new method for the analysis of almost periodic, nonuniform, nonlineardistributed feedback (NLDFB) structures is presented. A grating segmentation technique used for linear DFB devices is combined with the analytic solutions corresponding to a strictly periodic, uniform NLDFB device. The method is demonstrated for tapered, chirped, and phase shifted structures. New results describing the operation of single and multiple phase shifted NLDFB are reported. NLDFB structures with a axially varying effective Kerr index are also considered.