Beam propagation and non-linear effects in photonic crystal optoelectronic devices

This paper investigates trough computer simulations the properties of photonic crystal optoelectronic devices regarding the beam propagation and nonlinear effects. Using Optiwave FDTD software, computer simulations were made for 2D photonic crystal micro-cavities and optical fibers. The results confirmed the theoretical data found in literature and generated important conclusions about the light transmission and nonlinear effects in the studied photonic crystal devices. It was shown that two important nonlinear effects in resonant micro-cavities are the optical bistability and harmonic generation, while in photonic crystal fibers, the influence of nonlinear effects seems not very significant.