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Proceedings Paper

Designing fast optically controlled waveguide switches
Author(s): Alastair D. McAulay; Xin Xu; Junqing Wang
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Paper Abstract

Optically controlled two way switches are useful for constructing interconnection networks and for performing optical logic for parallel computing. A switch is constructed by placing two waveguides parallel and sufficiently close to each other that their fields couple transversely. The supermodes for this configuration are even and odd and travel at different phase velocities so that the output switches from one waveguide to the other repetitively with distance. The output can also be switched from one waveguide to the other by altering the optical length of the waveguide. Nonlinear materials are incorporated in the waveguide so that the optical path length may be altered by using an optical control beam to vary the intensity of light. A finite element method is described that enables the modeling of the nonlinear dual waveguide structure. Nonlinearity is handled by iteration and assuming an equivalent nonlinear relative permittivity.

Paper Details

Date Published: 9 November 1993
PDF: 8 pages
Proc. SPIE 2026, Photonics for Processors, Neural Networks, and Memories, (9 November 1993); doi: 10.1117/12.163579
Show Author Affiliations
Alastair D. McAulay, Lehigh Univ. (United States)
Xin Xu, Lehigh Univ. (United States)
Junqing Wang, Lehigh Univ. (United States)


Published in SPIE Proceedings Vol. 2026:
Photonics for Processors, Neural Networks, and Memories
Stephen T. Kowel; William J. Miceli; Joseph L. Horner; Bahram Javidi; Stephen T. Kowel; William J. Miceli, Editor(s)

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