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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 13 — Jun. 28, 2004
  • pp: 3035–3045

Recirculation-enhanced switching in photonic crystal Mach-Zehnder interferometers

T. P. White, C. Martijn de Sterke, R. C. McPhedran, T. Huang, and L. C. Botten  »View Author Affiliations


Optics Express, Vol. 12, Issue 13, pp. 3035-3045 (2004)
http://dx.doi.org/10.1364/OPEX.12.003035


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Abstract

We show that Mach-Zehnder interferometers (MZIs) formed from waveguides in a perfectly reflecting cladding can display manifestly different transmission characteristics to conventional MZIs due to mode recirculation and resonant reflection. Understanding and exploiting this behavior, rather than avoiding it, may lead to improved performance of photonic crystal (PC) based MZIs, for which cladding radiation is forbidden for frequencies within a photonic bandgap. Mode recirculation in such devices can result in a significantly sharper switching response than in conventional interferometers. A simple and accurate analytic model is presented and we propose specific PC structures with both high and low refractive index backgrounds that display these properties.

© 2004 Optical Society of America

OCIS Codes
(050.2230) Diffraction and gratings : Fabry-Perot
(130.3120) Integrated optics : Integrated optics devices
(230.5750) Optical devices : Resonators

ToC Category:
Research Papers

History
Original Manuscript: June 2, 2004
Revised Manuscript: June 21, 2004
Published: June 28, 2004

Citation
Thomas White, C. de Sterke, R. McPhedran, T. Huang, and L. Botten, "Recirculation-enhanced switching in photonic crystal Mach-Zehnder interferometers," Opt. Express 12, 3035-3045 (2004)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-12-13-3035


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