半导体微环谐振器及在光学滤波中的应用

Semiconductor Microring Resonator and Its Application in Optical Filter

半导体微环谐振器结构紧凑、集成度高、功能丰富,是构建超大规模集成光子回路最有潜力的代表之一.目前,它已广泛用于通信滤波器、延迟线、传感器、微激光器和光存储等方面,并成为集成光电子、光通信和光信息处理领域的研究热点.在研究介绍微环谐振器的工作原理基础上,分析了侧向耦合和垂直耦合微环谐振器的优缺点,总结了半导体微环谐振器在无源、有源和可调谐滤波器方面的应用和最新进展.

The semiconductor microring resonator is one of the most potential candidates to construct very large-scale integrated photonic circuits （VLSI-PCs） since it has compact structure, high-density integration and abundant function. Nowdays it has been widely used in highly selective communication filter, delay line, sensor, microlaser and optical storage, and becomes the hot topic in the fields of integrated optoelectronics, optical com- munication, and signal processing. Based on the introduced principle of microring resonator, the advantage and disadvantage of laterally and vertically coupled approach were analyzed. Recent advances and application of the semiconductor microring resonator in passive, active and tunable optical filters were discussed.