Logarithmic output from cascaded two-beam coupling interactions in photorefractive crystals
Logarithmic output from cascaded two-beam coupling interactions in photorefractive crystals
A scheme is presented that uses cascaded two-beam coupling interactions to optically generate a log transform. By optimizing the two free parameters of gain coefficient and beam intensity ratio for each interaction region, we have generated a computed output intensity that is the natural log of the input intensity, with an accuracy of better than 1% over a four decade dynamic range.
3362-3364
Eason, Robert W.
e38684c3-d18c-41b9-a4aa-def67283b020
James, Stephen W.
49f0ce7c-9031-4b05-b37c-a73d768c21fc
1990
Eason, Robert W.
e38684c3-d18c-41b9-a4aa-def67283b020
James, Stephen W.
49f0ce7c-9031-4b05-b37c-a73d768c21fc
Eason, Robert W. and James, Stephen W.
(1990)
Logarithmic output from cascaded two-beam coupling interactions in photorefractive crystals.
Applied Optics, 29 (23), .
(doi:10.1364/AO.29.003362).
Abstract
A scheme is presented that uses cascaded two-beam coupling interactions to optically generate a log transform. By optimizing the two free parameters of gain coefficient and beam intensity ratio for each interaction region, we have generated a computed output intensity that is the natural log of the input intensity, with an accuracy of better than 1% over a four decade dynamic range.
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Published date: 1990
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Local EPrints ID: 78623
URI: http://eprints.soton.ac.uk/id/eprint/78623
ISSN: 0003-6935
PURE UUID: e249e0a2-75cd-4ca6-b471-df2ba14054f3
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:33
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Author:
Stephen W. James
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