편광특성이 배열도파로 격자소자의 Crosstalk에 미치는 영향

초록

An arrayed-waveguide grating multiplexer with raised structure is fabricated in order to effect polarization sensitivity. Since polarization is usually not known after propagation in an optical fiber, passive WDM components such as monolithic wavelength demultiplexer have to be polarization insensitive. Here, we observed that polarization have effect on crosstalk of output spectrum in arrayed-waveguide grating. First, we achieved the fabrication and characterization of arrayed waveguide gratings using sol-gel derived silica glass films formed on fused silica substrate