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Optical comparator uses holographic subtractionIntegrated optical comparator compares reference and signal voltages by their effects on coherent light beam. If both voltages are same, beam is essentially unperturbed. If voltages differ, light is deflected by previously recorded hologram to detector.
Document ID
19790000590
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Vahey, D. W. (Battelle Memorial Inst.)
Verber, C. M. (Battelle Mem. Inst.)
Date Acquired
August 10, 2013
Publication Date
June 1, 1980
Publication Information
Publication: NASA Tech Briefs
Volume: 4
Issue: 4
ISSN: 0145-319X
Subject Category
Mathematics And Information Sciences
Report/Patent Number
LAR-12126
Accession Number
79B10590
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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