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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 16, Iss. 21 — Nov. 1, 1991
  • pp: 1641–1643

All-optical ultrafast logic gates that use asymmetric nonlinear directional couplers

C. C. Yang  »View Author Affiliations


Optics Letters, Vol. 16, Issue 21, pp. 1641-1643 (1991)
http://dx.doi.org/10.1364/OL.16.001641


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Abstract

All-optical ultrafast and, or, and xor logic functions that use asymmetric nonlinear directional couplers are numerically demonstrated. In such an asymmetric coupler, different Kerr effects are generated when the same power is launched into two waveguides. The output power tends to appear in the waveguide of stronger Kerr effect when only one waveguide is excited. When both waveguides are excited, the output power contrast between the two waveguides depends on the relative phase of the two input signals. The parameters of fiber couplers are used to demonstrate the logic functions.

© 1991 Optical Society of America

History
Original Manuscript: April 22, 1991
Published: November 1, 1991

Citation
C. C. Yang, "All-optical ultrafast logic gates that use asymmetric nonlinear directional couplers," Opt. Lett. 16, 1641-1643 (1991)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-16-21-1641

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