Modeling of coupling loss in ultra-compact SOI microring resonators |
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Authors: | Haili Hu Baojun Zuo Jianjun Liu Zhigang Fan Yingtao Jiang |
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Institution: | 1. School of Astronautics, Harbin Institute of Technology, Harbin 150001, China;2. School of Electronic Science, Northeast Petroleum University, Daqing 163318, China;3. Department of Electrical and Computer Engineering, University of Nevada Las Vegas, Las Vegas, NV 89119, USA |
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Abstract: | Ultra-compact microring resonators, made of high index contrast (HIC)-silicon on insulator (SOI) materials, have become key optical devices in integrated photonics systems. Both computer simulations and actual experiments have showed that coupling loss was a significant contributor to the total losses in ultra-compact microring resonators. In this paper, a computable model derived from step approximation method was present to theoretically determine the coupling loss. Excellent matching results between the model and literatures were achieved. The proposed model can be applied to evaluate the coupling loss for microring resonators with various geometries and guide the design of low loss optical devices based on ultra-compact microring resonators. |
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Keywords: | Integrated optics Microring resonator Coupling loss Silicon on insulator |
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