Single-mode silicon-on-insulator elliptical microdisk resonators with high Q factors

Kang Xiong; Xi Xiao; Yingtao Hu; Zhiyong Li; Tao Chu; Yude Yu; Jinzhong Yu

doi:10.1117/12.920503

22 February 2012 Single-mode silicon-on-insulator elliptical microdisk resonators with high Q factors

Kang Xiong, Xi Xiao, Yingtao Hu, Zhiyong Li, Tao Chu, Yude Yu, Jinzhong Yu

Proceedings Volume 8333, Photonics and Optoelectronics Meetings (POEM) 2011: Optoelectronic Devices and Integration; 83330A (2012) https://doi.org/10.1117/12.920503
Event: Photonics and Optoelectronics Meetings 2011, 2011, Wuhan, China

Abstract

We propose and demonstrate a novel elliptical microdisk resonator which enables single-mode operation with high quality (Q) factor. Such elliptical microdisk resonators with pedestal, which consist of plenty of smoothly changing bends with modified curvature radii, can easily achieve single-mode operation due to selective losses introduced by mode transmission mismatches and small curvature radii portion inside the elliptical microdisks. We fabricated the devices on silicon-on-insulator (SOI) platform. Single-mode resonance with high quality factor (Q) of ~105 was experimentally realized. Besides, the proposed elliptical microdisk provides larger coupling strength compared to normal circular microdisk, and hence enables critical coupling with easy-to-fabricate gaps.

Citation Download Citation

Kang Xiong, Xi Xiao, Yingtao Hu, Zhiyong Li, Tao Chu, Yude Yu, and Jinzhong Yu "Single-mode silicon-on-insulator elliptical microdisk resonators with high Q factors", Proc. SPIE 8333, Photonics and Optoelectronics Meetings (POEM) 2011: Optoelectronic Devices and Integration, 83330A (22 February 2012); https://doi.org/10.1117/12.920503

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