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Optical logic operations via polarisation encoding in a phase conjugate Michelson interferometer

Optical logic operations via polarisation encoding in a phase conjugate Michelson interferometer
Optical logic operations via polarisation encoding in a phase conjugate Michelson interferometer
We demonstrate a technique of parallel optical logic operations performed on two two-dimensional input variables. The technique is based upon a cascaded phase conjugate Michelson interferometric (PCMI), arrangement, in which multiple signal beams, sharing a common reference beam, are used to record angularly multiplexed holograms in a single crystal of BSO. The logic operations are performed at the output port of a beamsplitter via polarization manipulation of the two phase conjugate outputs. When the PCMI is working in polarization preserving mode, complete subtraction is achieved. However, when the PCMI operates in non-polarization preserving mode, and the two phase conjugate beams are of nearly orthogonal polarizations to that of input polarizations, coherent addition is observed. By varying the polarization angle of the two phase conjugate outputs, continuous logic operations are achieved. We present the experimental results of all sixteen basic logic operations on two variables
95-105
Hussain, G.
60f5b057-92d8-4506-a5f2-19eb167e4d8e
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020
Hussain, G.
60f5b057-92d8-4506-a5f2-19eb167e4d8e
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020

Hussain, G. and Eason, R.W. (1992) Optical logic operations via polarisation encoding in a phase conjugate Michelson interferometer. International Journal of Optical Computing, 2 (2), 95-105.

Record type: Article

Abstract

We demonstrate a technique of parallel optical logic operations performed on two two-dimensional input variables. The technique is based upon a cascaded phase conjugate Michelson interferometric (PCMI), arrangement, in which multiple signal beams, sharing a common reference beam, are used to record angularly multiplexed holograms in a single crystal of BSO. The logic operations are performed at the output port of a beamsplitter via polarization manipulation of the two phase conjugate outputs. When the PCMI is working in polarization preserving mode, complete subtraction is achieved. However, when the PCMI operates in non-polarization preserving mode, and the two phase conjugate beams are of nearly orthogonal polarizations to that of input polarizations, coherent addition is observed. By varying the polarization angle of the two phase conjugate outputs, continuous logic operations are achieved. We present the experimental results of all sixteen basic logic operations on two variables

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Published date: 1992

Identifiers

Local EPrints ID: 78522
URI: https://eprints.soton.ac.uk/id/eprint/78522
PURE UUID: 22f531c4-c7e5-486c-a4d8-b4c8c48e5e6d
ORCID for R.W. Eason: ORCID iD orcid.org/0000-0001-9704-2204

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Date deposited: 11 Mar 2010
Last modified: 06 Jun 2018 13:13

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