Analysis of a tunable multichannel two-mode-interference wavelength-division-multiplexer/demultiplexer

An integrated optical multichannel wavelength-division multiplexer/demultiplexer for a single-mode fiber system is investigated by the beam propagation method (BPM). Important wavelength characteristics of dual-channel two-mode-interference (TMI) multiplexer/demultiplexer waveguide with and without electrode are studied and general design guidelines for realizing multichannel multiplexer/demultiplexer are given. Design and simulation of four-channel TMI multiplexer/demultiplexer are discussed.>