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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 16 — Aug. 1, 2011
  • pp: 14892–14902

Parallel-coupled dual racetrack silicon micro-resonators for quadrature amplitude modulation

Ryan A. Integlia, Lianghong Yin, Duo Ding, David Z. Pan, Douglas M. Gill, and Wei Jiang  »View Author Affiliations


Optics Express, Vol. 19, Issue 16, pp. 14892-14902 (2011)
http://dx.doi.org/10.1364/OE.19.014892


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Abstract

A parallel-coupled dual racetrack silicon micro-resonator structure is proposed and analyzed for M-ary quadrature amplitude modulation. The over-coupled, critically coupled, and under-coupled scenarios are systematically studied. Simulations indicate that only the over-coupled structures can generate arbitrary M-ary quadrature signals. Analytic study shows that the large dynamic range of amplitude and phase of a modulated over-coupled structure stems from the strong cross-coupling between two resonators, which can be understood through a delicate balance between the direct sum and the “interaction” terms. Potential asymmetries in the coupling constants and quality factors of the resonators are systematically studied. Compensations for these asymmetries by phase adjustment are shown feasible.

© 2011 OSA

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(230.4110) Optical devices : Modulators
(230.5750) Optical devices : Resonators

ToC Category:
Integrated Optics

History
Original Manuscript: March 28, 2011
Revised Manuscript: June 14, 2011
Manuscript Accepted: June 15, 2011
Published: July 19, 2011

Citation
Ryan A. Integlia, Lianghong Yin, Duo Ding, David Z. Pan, Douglas M. Gill, and Wei Jiang, "Parallel-coupled dual racetrack silicon micro-resonators for quadrature amplitude modulation," Opt. Express 19, 14892-14902 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-16-14892


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