감광성 폴리이미드 재료를 가정한 다중모드 간섭 편광분리 소자의 최적설계

초록

The beam splitter is important in optical communication systems. In this work, the quasi-state based on four-mode interference in the MMI coupler is proposed, and so, device length is shorten to be 1/5 of general designed length. We designed the polarization splitter based on the concept of quasi-state. The analysis has been accomplished by the effective index method(EIM) and the mode propagation analysis(MPA) for given structure.