Design of GaAs-Photonic Crystal Based Polarization Splitter

Photonic Crystal has attracted many researchers because of their distinctive capabilities, larger application areas. In this paper, a polarization splitter based on photonic crystal is developed with the help of photonic band gap diagram and self-collimation method. The photonic crystal based splitter is constructed in hexagonal lattice structure with GaAs rods placed in air. To obtain the band diagram, the radius of the rods is considered as 100 nm with lattice constant of 500nm. The developed polarization splitter is simulated using RSOFT software. It is observed through the simulation results that C the proposed splitter design achieves better transmission spectral and optical field distributions for both TE and TM modes. Power dissipation is reduced compared to that of existing splitters. 90% transmission is obtained for the proposed model.