Compact rectangular ring resonator with optimum multimode interference

초록

Rectangular microring resonators containing active and passive sections are fabricated and characterized with various multimode-interference (MMI) lengths. The optimum MMI length and width turn out to be I 10 and 9 mu m, respectively. The material platform and fabrication process used are the same used for other active and passive devices except for a deep etch step. Hence such resonators are easily integrated-with other active and passive devices. A free spectral range of approximately 244 GHz is observed with an on-off ratio of 13 dB.

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