Nondegenerate two-beam coupling in Kerr nonlinear photonic crystals

Ping Xie, Zhao-Qing Zhang
2005 Physical Review E  
We show that the energy-transfer efficiency by nondegenerate two-beam coupling in a one-dimensional Kerr-nonlinear superlattice can be enhanced by several orders of magnitude as compared with that in a homogeneous medium of the same nonlinearity and length. This significant enhancement utilizes the strong localized field at the band-edge state, two-frequency localized state, or defect state. Due to the intensityinduced index modulation, the bistability is observed, and because of the energy
more » ... sfer between different wavelength components, the tristability behavior is induced.
doi:10.1103/physreve.72.036607 pmid:16241592 fatcat:jvgwvioqx5dvzkoew7o4uuoyui