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Narrowband Optical Heterodyne Detection
| dc.contributor.author | Hanlon, J. | |
| dc.contributor.author | Jacobs, S. F. | |
| dc.date.accessioned | 2016-12-13T21:37:04Z | |
| dc.date.available | 2016-12-13T21:37:04Z | |
| dc.date.issued | 1967-01 | |
| dc.identifier.uri | http://hdl.handle.net/10150/621606 | |
| dc.description | QC 351 A7 no. 12 | en |
| dc.description.abstract | The 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.iso | en_US | en |
| dc.publisher | Optical Sciences Center, University of Arizona (Tucson, Arizona) | en |
| dc.relation.ispartofseries | Optical Sciences Technical Report 12 | en |
| dc.rights | Copyright © Arizona Board of Regents | |
| dc.subject | Optics. | en |
| dc.title | Narrowband Optical Heterodyne Detection | en_US |
| dc.type | Technical Report | en |
| dc.description.collectioninformation | This 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.dateFOA | 2018-06-16T16:35:49Z | |
| html.description.abstract | The 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. |
