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Direct-Photon-Detection CommunicationsOptical communications system based on direct detection of photons rather than heterodyning of carrier with local oscillator. Direct-detection system uses single laser source, pulse-position modulation, and Reed-Solomon coding to protect against burst errors. Conventional photomultiplier tube is receiver. Technology applicable to terrestrial communications.
Document ID
19840000256
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Lesh, J. R. (CALTECH)
Katz, J. (CALTECH)
Date Acquired
August 12, 2013
Publication Date
April 1, 1985
Publication Information
Publication: NASA Tech Briefs
Volume: 8
Issue: 4
ISSN: 0145-319X
Subject Category
Electronic Systems
Report/Patent Number
NPO-15905
Accession Number
84B10256
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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