The whispering gallery mode in photonic crystal ring cavity

Mingxin Xing; Wanhua Zheng; Yejin Zhang; Gang Ren; Xiaoyu Du; Ke Wang; Lianghui Chen

doi:10.1117/12.792403

11 March 2008 The whispering gallery mode in photonic crystal ring cavity

Mingxin Xing, Wanhua Zheng, Yejin Zhang, Gang Ren, Xiaoyu Du, Ke Wang, Lianghui Chen

Proceedings Volume 6984, Sixth International Conference on Thin Film Physics and Applications; 698438 (2008) https://doi.org/10.1117/12.792403
Event: Sixth International Conference on Thin Film Physics and Applications, 2007, Shanghai, China

Abstract

Whispering gallery modes (WGMs) in microcavities possess ultra- high cavity Q factor. Such microcavity are easy to be fabricated, so WGMs have attracted much attention in the area of photonics and integrated photonic circuits. It is well known that the effect of total internal reflection restricts the size of this mirocavity. Such drawback goes against the integration of photon. However, the photonic crystal microcavities (PCMC) make a breakthrough recently. The WGMs in the PCMC are possible to gain both ultra-high Q and ultra-small mode volume. In this paper, the property of the mode in photonic crystal ring cavity is analyzed by FDTD and PWE. By modifying the airholes in the corners of the ring cavity, we can obtain the WGM. Also the Q factor of WGM in photonic crystal ring cavity is calculated. This favors the design of the photonic crystal microcavity components.

Citation Download Citation

Mingxin Xing, Wanhua Zheng, Yejin Zhang, Gang Ren, Xiaoyu Du, Ke Wang, and Lianghui Chen "The whispering gallery mode in photonic crystal ring cavity", Proc. SPIE 6984, Sixth International Conference on Thin Film Physics and Applications, 698438 (11 March 2008); https://doi.org/10.1117/12.792403

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