Design and Analysis of 2D Photonic Crystal Waveguides for High Coupling Efficiency
In this paper we have proposed a photonic crystal structure to enhance the coupling efficiency between photonic crystal waveguide (PCW) and the conventional dielectric waveguide. The proposed waveguide characterized with employing the taper structure and varying the holes’ radius in the taper. Two-dimensional (2D) finite-difference time-domain (FDTD) method has been used to analyze the structure. The simulation results show that the coupling efficiency can be achieved as high as 81.6% at the wavelength of 1.55um.
S. J. CHUA, J. H. TENG, O. WADA, R. DE LA RUE and X. H. TANG
M. Wu et al., "Design and Analysis of 2D Photonic Crystal Waveguides for High Coupling Efficiency", Advanced Materials Research, Vol. 31, pp. 27-29, 2008