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dc.contributor.authorHanlon, J.
dc.contributor.authorJacobs, S. F.
dc.date.accessioned2016-12-13T21:37:04Z
dc.date.available2016-12-13T21:37:04Z
dc.date.issued1967-01
dc.identifier.urihttp://hdl.handle.net/10150/621606
dc.descriptionQC 351 A7 no. 12en
dc.description.abstractThe technique of coherent detection has been used to explore the problems involved in detecting extremely low power levels. An input signal power level of 5 x 10^-19 watts of 3.39u radiation was detected with voltage S/N of 2, in good agreement with theory. The major experimental problem was elimination of feedback from the local oscillator into the laser source. Narrowness of bandwidth was limited by instability in detector bias. Neither of these difficulties presents a fundamental limitation to a well designed receiver of light from a distant source.
dc.language.isoen_USen
dc.publisherOptical Sciences Center, University of Arizona (Tucson, Arizona)en
dc.relation.ispartofseriesOptical Sciences Technical Report 12en
dc.rightsCopyright © Arizona Board of Regents
dc.subjectOptics.en
dc.titleNarrowband Optical Heterodyne Detectionen_US
dc.typeTechnical Reporten
dc.description.collectioninformationThis title from the Optical Sciences Technical Reports collection is made available by the College of Optical Sciences and the University Libraries, The University of Arizona. If you have questions about titles in this collection, please contact repository@u.library.arizona.edu.
refterms.dateFOA2018-06-16T16:35:49Z
html.description.abstractThe technique of coherent detection has been used to explore the problems involved in detecting extremely low power levels. An input signal power level of 5 x 10^-19 watts of 3.39u radiation was detected with voltage S/N of 2, in good agreement with theory. The major experimental problem was elimination of feedback from the local oscillator into the laser source. Narrowness of bandwidth was limited by instability in detector bias. Neither of these difficulties presents a fundamental limitation to a well designed receiver of light from a distant source.


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