Model of a series-cascaded fractal topological structure of microring resonator arrays

Xiaobei Zhang; Yingchun Li; Fan Gu; Biyun Jin

doi:10.1117/12.1000082

27 November 2012 Model of a series-cascaded fractal topological structure of microring resonator arrays

Xiaobei Zhang, Yingchun Li, Fan Gu, Biyun Jin

Author Affiliations +

Proceedings Volume 8555, Optoelectronic Devices and Integration IV; 85551N (2012) https://doi.org/10.1117/12.1000082
Event: Photonics Asia, 2012, Beijing, China

Abstract

A series-cascaded fractal topological structure of microring arrays is proposed, by introducing fractal topological structures to series-cascaded all-pass microring resonators. Its analytical model is established by the transfer matrix method. Then the characteristics of this structure are investigated by the effects of coupling coefficients and loss. Generally, there are dips with the resonator number in the transmission spectra. As the loss increases, the average intensity decreases. However, the delay becomes interesting positive and negative delays. With the ring-bus coupling coefficient decreases, the dips of the spectrum become degenerated. However, there are several delay peaks with some positive delays and the other negative ones. These kinds of multiple positive and negative delays can be developed for applications in all-optical delay lines.

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Xiaobei Zhang, Yingchun Li, Fan Gu, and Biyun Jin "Model of a series-cascaded fractal topological structure of microring resonator arrays", Proc. SPIE 8555, Optoelectronic Devices and Integration IV, 85551N (27 November 2012); https://doi.org/10.1117/12.1000082

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