Design optimization of a novel triplexer chip structure based on Planar Lightwave Circuit(PLC) for fiber-to-the premise applications is described
calculations of the spectral responses of the unit structure performed and the technological tolerance of the structure analyzed by numerical simulations.The results show that triplexer chips with high tolerance and improved spectral response can be fabricated by using two-mode couplers and Mach-Zehnder interferometer.