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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 17 — Aug. 18, 2008
  • pp: 13304–13314

Interferometric microring-resonant 2×2 optical switches

Sang-Yeon Cho and Richard Soref  »View Author Affiliations


Optics Express, Vol. 16, Issue 17, pp. 13304-13314 (2008)
http://dx.doi.org/10.1364/OE.16.013304


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Abstract

We present modeling and simulation results on a new family of waveguided interferometric 2×2 optical routing switches actuated by electro-optic or thermo-optic or all-optical control. Two pairs of coupled microring resonators provide two 3dB coupling regions within a compact Mach-Zehnder geometry. An index perturbation Δn of 2×10-3 is sufficient to produce 100% 2×2 switching. This perturbation can be applied to one arm of the MZI or to the four rings in the device or to an additional ring that is coupled to one arm. We find that push-pull control is effective for switching: for example, when carriers are injected in one region and depleted in a corresponding second region. An optical transfer-matrix technique is employed to determine the electromagnetic response (the 1550-nm switching characteristics) of the three device-types. Microdisks can be employed instead of microrings, if desired.

© 2008 Optical Society of America

OCIS Codes
(160.3130) Materials : Integrated optics materials
(230.2090) Optical devices : Electro-optical devices
(230.3990) Optical devices : Micro-optical devices
(130.4815) Integrated optics : Optical switching devices
(130.7408) Integrated optics : Wavelength filtering devices

ToC Category:
Integrated Optics

History
Original Manuscript: July 7, 2008
Revised Manuscript: August 8, 2008
Manuscript Accepted: August 8, 2008
Published: August 13, 2008

Citation
Sang-Yeon Cho and Richard Soref, "Interferometric microring-resonant 2 x 2 optical switches," Opt. Express 16, 13304-13314 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-17-13304


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