Optimizing design of triplexer chip with low insert loss and high isolation based on planar lightwave circuit

Design optimization of a novel integrated triplexer based on planar lightwave circuit (PLC) for fiber-to-the-home applica- tions is described. The two-mode interference coupler and Mach-Zehnder interference are used to construct the filter chip. Simulation results of high isolation and low insertion loss are gotten for proposed design. Technique tolerance is improved for fabricating device.