Study On The Wavelength Division Multiplexing Filter Of One Dimensional Photonic Crystals

Recently it appears new optical apparatus and new optical theory-photonic crystals. Photon integrated chip consisting of photonic crystals control photon as integrated circles control electron, then realize all optical information treatment. There are attracting future on all optical communication network, optic quanta information, photon computer field.There are many methods studying on photonic crystal, Transfer matrix method is a simple and utility theory calculate method, Study photonic crystals as integration don't discuss intermediate process, and don't show the distributing of incidence field can calculate the transmission and reflection of photonic crystals.This paper study the optimization design of one dimensional photonic crystals ,and simulate the transmission properties, discuss the influence of filling factor on width band and the influence of incidence angle on the transmission characteristic and so on, For the period structure, it study the structure of napped and three-unit complex period photonic crystals, introducing a parameter called perfect factor, discuss the influence of variational parameter on multi-channel filtering properties;and design 8 channel wavelength division multiplexing filter. For non-period structure, studying the structure of single layers and period layers. Discussing the influence of different parameter on multi-channel filtering properties. Finally, design the dense wavelength division multiplexing transmission filter.