Abstract: The transmission characteristics of L-type waveguides system based on 2D heterostructure photonic crystals was studied by finite-difference time-domain ( FDTD) method. The results showed that it is better for controlling light transmission by introducing heterostructure in this system. In the L-type waveguide system, the transmission efficiency raises 6;-7; for the heterostructure photonic crystal, compared to that on homostructure photonic crystal. The studies provided a new design solution improving the efficiency of high-integration photonic crystals waveguide devices.

Key words: The transmission characteristics of L-type waveguides system based on 2D heterostructure photonic crystals was studied by finite-difference time-domain ( FDTD) method. The results showed that it is better for controlling light transmission by introducing heterostructure in this system. In the L-type waveguide system, the transmission efficiency raises 6;-7; for the heterostructure photonic crystal, compared to that on homostructure photonic crystal. The studies provided a new design solution improving the efficiency of high-integration photonic crystals waveguide devices.