Abstract:

To obtain a shorter response time, all-optical switch, in a photonic crystal high refractive index layers all mixed Kerr medium, based on the Kerr nonlinear effect caused by the whole band moving principle, design of the two kinds of one-dimensional photonic crystal all-optical switch. Application of FD-TD(Finite Difference-Time Domain) method, the preparation of Matlab computer program, for all-optical switching characteristics of numerical analysis. Discuss the frequency of mixed effects on the all-optical switching effects. Observation of photon localization effect of photonic crystals to enhance nonlinear phenomena, verify photon localization effect and photonic crystal structure of a complete cycle of the relevant number of layers, number of storeys photon localization effect was not obvious enough.

Key words: photonic crystals, all-optical switching, nonlinearity, frequency mixing, photonic localization