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Opt Lett. 2008 Sep 1;33(17):1978-80.

Embedded ring resonators for microphotonic applications.

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  • 1Department of Electrical Engineering, University of Southern California, Los Angeles, CA 90089, USA.


We propose a new type of optical resonator that consists of embedded ring resonators (ERRs). The resonators exhibit unique amplitude and phase characteristics and allow designing compact filters, modulators, and delay elements. A basic configuration of the ERRs with two rings coupled in a point-to-point manner is discussed under two operating conditions. An ERR-based microring modulator shows a high operation speed up to 30 GHz. ERRs with distributed coupling are briefly described as well.

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