광통신용 마이크로 광소자의 결합효율 분석

초록

The coupling efficiency of micro-optic devices are very important for fabricating the low-loss communication devices. Usually, spherical ball lens, graded index lens, and plano-convex lens have been utilized for coupling the light from an input fiber into an output fiber within the devices. In this paper, the simulation tool based on the finite ray tracing method was developed for analyzing coupling efficiencies of micro-optic devices and obtaining their configuration with the maximum efficiency. By using the tool, the characteristics of ball lens and GRIN lens was evaluated and compared with each other.