광민감성 폴리머 AWG에서 편광의존성의 효과적인 제거방법에 관한 연구

초록

The polarization dependence of the arrayed-waveguide grating device is excellently suppressed by controlling the grating order (m) for a given refractive index difference between TE and TM modes within polyimide. The transmission characteristics of two AWG's for two grating orders, m=70 and 90, shows wavelength shift of 5.04nm and nearly zero, respectively, strongly supporting and confirming the method that we have identified for the birefringence suppression.