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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 29, Iss. 23 — Dec. 1, 2004
  • pp: 2779–2781

Photonic logic NOR gate based on two symmetric microring resonators

T. A. Ibrahim, K. Amarnath, L. C. Kuo, R. Grover, V. Van, and P.-T. Ho  »View Author Affiliations


Optics Letters, Vol. 29, Issue 23, pp. 2779-2781 (2004)
http://dx.doi.org/10.1364/OL.29.002779


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Abstract

We demonstrate an all-optical NOR logic gate based on symmetric GaAs–AlGaAs microring resonators whose resonances are closely matched. Two input pump data streams are tuned close to one resonance of the symmetric microrings to switch a probe beam tuned to another resonance by two-photon absorption. The switching energy of the gate is 20 pJ/pulse, and the switching window is 40 ps, limited by the carrier lifetime. The use of two rings provides for better cascading in photonic logic circuits because of the higher number of available ports.

© 2004 Optical Society of America

OCIS Codes
(130.3750) Integrated optics : Optical logic devices
(190.4180) Nonlinear optics : Multiphoton processes
(190.4360) Nonlinear optics : Nonlinear optics, devices
(200.4660) Optics in computing : Optical logic
(230.4320) Optical devices : Nonlinear optical devices

Citation
T. A. Ibrahim, K. Amarnath, L. C. Kuo, R. Grover, V. Van, and P.-T. Ho, "Photonic logic NOR gate based on two symmetric microring resonators," Opt. Lett. 29, 2779-2781 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-23-2779

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