The Transmission Properties of One-Bus Two-Ring Devices

Landobasa Y. M. A. L. TOBING; Pieter DUMON; Roel BAETS; Desmond. C. S. LIM; Mee-Koy CHIN

doi:10.1093/ietele/e91-c.2.167

Special Section on Silicon Photonics Technologies and Their Applications

The Transmission Properties of One-Bus Two-Ring Devices

Landobasa Y. M. A. L. TOBING, Pieter DUMON, Roel BAETS, Desmond. C. S. LIM, Mee-Koy CHIN

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Keywords: microring resonator, critical coupling, silicon on insulator integrated optics

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2008 Volume E91.C Issue 2 Pages 167-172

DOI https://doi.org/10.1093/ietele/e91-c.2.167

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Abstract

We propose and demonstrate a simple one-bus two-ring configuration where the two rings are mutually coupled that has advantages over the one-ring structure. Unlike a one cavity system, it can exhibit near critically-coupled transmission with a broader range of loss. It can also significantly enhance the cavity finesse by simply making the second ring twice the size of the bus-coupled one, with the enhancement proportional to the intensity buildup in the second ring.

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