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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: G. I. Stegeman
  • Vol. 23, Iss. 4 — Apr. 1, 2006
  • pp: 684–691

All-optical logic gates based on nonlinear slot-waveguide couplers

Takeshi Fujisawa and Masanori Koshiba  »View Author Affiliations


JOSA B, Vol. 23, Issue 4, pp. 684-691 (2006)
http://dx.doi.org/10.1364/JOSAB.23.000684


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Abstract

A novel design of all-optical logic gates based on nonlinear slot-waveguide couplers is proposed. NOT, OR, and AND logic gates can be realized by a simple single optical-directional coupler configuration. Strong polarization dependencies of slot waveguides are effectively utilized for realizing polarization-independent optical-directional couplers in the linear regime and polarization-dependent all-optical switches in the nonlinear regime. All the simulations performed in this paper were performed for three-dimensional nonlinear channel waveguide structures by using rigorous numerical schemes based on the full-vector finite-element method specially formulated for nonlinear optical waveguides.

© 2006 Optical Society of America

OCIS Codes
(130.3750) Integrated optics : Optical logic devices
(190.3270) Nonlinear optics : Kerr effect
(190.4390) Nonlinear optics : Nonlinear optics, integrated optics
(230.1150) Optical devices : All-optical devices
(230.3990) Optical devices : Micro-optical devices
(230.5440) Optical devices : Polarization-selective devices

ToC Category:
Nonlinear Optics

History
Original Manuscript: August 19, 2005
Revised Manuscript: September 28, 2005
Manuscript Accepted: November 10, 2005

Citation
Takeshi Fujisawa and Masanori Koshiba, "All-optical logic gates based on nonlinear slot-waveguide couplers," J. Opt. Soc. Am. B 23, 684-691 (2006)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-23-4-684


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