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Photonic Crystal Ring Resonators and Ring Resonator Circuits

  • Weidong Zhou
  • Zexuan Qiang
  • Richard A. Soref
Chapter
Part of the Springer Series in Optical Sciences book series (SSOS, volume 156)

Abstract

We present the characteristics and applications of photonic crystal ring resonators (PCRR). Photonic crystal confinement can achieve very high cavity quality factor ring resonators. Diffraction-limited ultra-compact PCRRs are feasible due to the absence of size-dependent losses. The flexible modal properties can offer flexible design and integration schemes for either forward or backward propagating add-drop filters based on single- or dual-ring PCRRs. Hybrid-confined PCRRs also show great potential and useful characteristics. Furthermore, we report a few device and circuit configurations based on PCRRs for high-speed modulators, filters, delay lines, etc. Such PCRR structures can potentially provide a good alternative to the traditional microring resonators, as one of the key contributors to the emerging low-power nanophotonics technology.

Keywords

Ring resonators Photonic crystal Photonic bandgap Mode superposition Add-drop filter 

Notes

Acknowledgments

The authors appreciate helpful discussions with Drs. Z. Ma, Z. Sheng, and K. Zou. The authors also acknowledge the help and support of Dr. Gernot Pomrenke. This work was supported in part by the US Air Force Office of Scientific Research under Grant 07-SC-AFOSR-1004 and in part by the National Science Foundation under Grant DMI-0625728.

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Copyright information

© Springer-Verlag US 2010

Authors and Affiliations

  1. 1.Department of Electrical Engineering, NanoFAB CenterUniversity of Texas at ArlingtonArlingtonUSA
  2. 2.Department of Electrical Engineering, NanoFAB CenterUniversity of Texas at ArlingtonArlingtonUSA
  3. 3.Air Force Research Laboratory, AFRL/RYNC, Hanscom Air Force BaseBostonUSA

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