INTEGRATED-OPTICS IMPLEMENTATION OF AN INTERFEROMETRIC SPECTRUM ANALYSER
An improved interferometric spectrum analyser system with direction finding capabilities for an emitting source, the type having a holographic element to provide a laser beam source for the system. The laser beam from the source is focused on a light waveguide within which are arranged in asymmetric...
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| creator | BROUSSEAU, NICOLE |
| description | An improved interferometric spectrum analyser system with direction finding capabilities for an emitting source, the type having a holographic element to provide a laser beam source for the system. The laser beam from the source is focused on a light waveguide within which are arranged in asymmetrical configuration with respect to the direction of the laser beam source a plurality of antenna signal transducers and a plurality of reference signal transducers, the antenna signal transducers and the reference signal transducers respectively being arranged in adjacent rows in such a manner as to provide acoustic signals propagating in the same direction within the transducer. A lens assembly is positioned with respect to the light waveguide so as to provide a one-dimensional Fourier transform signal on the x-axis of the waveguide by causing the mixing of the Fourier transform signal of the antenna signal and the Fourier transform signal of the reference signal. The analyser according to the present invention is more compact and less sensitive to vibration than currently available systems. |
| format | Patent |
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The laser beam from the source is focused on a light waveguide within which are arranged in asymmetrical configuration with respect to the direction of the laser beam source a plurality of antenna signal transducers and a plurality of reference signal transducers, the antenna signal transducers and the reference signal transducers respectively being arranged in adjacent rows in such a manner as to provide acoustic signals propagating in the same direction within the transducer. A lens assembly is positioned with respect to the light waveguide so as to provide a one-dimensional Fourier transform signal on the x-axis of the waveguide by causing the mixing of the Fourier transform signal of the antenna signal and the Fourier transform signal of the reference signal. The analyser according to the present invention is more compact and less sensitive to vibration than currently available systems.</description><edition>5</edition><language>eng ; fre</language><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES ; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES ; MEASURING ; MEASURING ELECTRIC VARIABLES ; MEASURING MAGNETIC VARIABLES ; PHYSICS ; RADIO DIRECTION-FINDING ; RADIO NAVIGATION ; TESTING</subject><creationdate>1991</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19910618&DB=EPODOC&CC=CA&NR=1285048C$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19910618&DB=EPODOC&CC=CA&NR=1285048C$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>BROUSSEAU, NICOLE</creatorcontrib><title>INTEGRATED-OPTICS IMPLEMENTATION OF AN INTERFEROMETRIC SPECTRUM ANALYSER</title><description>An improved interferometric spectrum analyser system with direction finding capabilities for an emitting source, the type having a holographic element to provide a laser beam source for the system. The laser beam from the source is focused on a light waveguide within which are arranged in asymmetrical configuration with respect to the direction of the laser beam source a plurality of antenna signal transducers and a plurality of reference signal transducers, the antenna signal transducers and the reference signal transducers respectively being arranged in adjacent rows in such a manner as to provide acoustic signals propagating in the same direction within the transducer. A lens assembly is positioned with respect to the light waveguide so as to provide a one-dimensional Fourier transform signal on the x-axis of the waveguide by causing the mixing of the Fourier transform signal of the antenna signal and the Fourier transform signal of the reference signal. The analyser according to the present invention is more compact and less sensitive to vibration than currently available systems.</description><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</subject><subject>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</subject><subject>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</subject><subject>MEASURING</subject><subject>MEASURING ELECTRIC VARIABLES</subject><subject>MEASURING MAGNETIC VARIABLES</subject><subject>PHYSICS</subject><subject>RADIO DIRECTION-FINDING</subject><subject>RADIO NAVIGATION</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1991</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZPDw9AtxdQ9yDHF10fUPCPF0Dlbw9A3wcfV19QtxDPH091Pwd1Nw9FMAKQtycw3y93UNCfJ0VggOcHUOCQr1Bco5-kQGuwbxMLCmJeYUp_JCaW4GeTfXEGcP3dSC_PjU4oLE5NS81JJ4Z0dDIwtTAxMLZ2PCKgCYXiyB</recordid><startdate>19910618</startdate><enddate>19910618</enddate><creator>BROUSSEAU, NICOLE</creator><scope>EVB</scope></search><sort><creationdate>19910618</creationdate><title>INTEGRATED-OPTICS IMPLEMENTATION OF AN INTERFEROMETRIC SPECTRUM ANALYSER</title><author>BROUSSEAU, NICOLE</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CA1285048C3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>1991</creationdate><topic>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</topic><topic>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</topic><topic>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</topic><topic>MEASURING</topic><topic>MEASURING ELECTRIC VARIABLES</topic><topic>MEASURING MAGNETIC VARIABLES</topic><topic>PHYSICS</topic><topic>RADIO DIRECTION-FINDING</topic><topic>RADIO NAVIGATION</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>BROUSSEAU, NICOLE</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>BROUSSEAU, NICOLE</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>INTEGRATED-OPTICS IMPLEMENTATION OF AN INTERFEROMETRIC SPECTRUM ANALYSER</title><date>1991-06-18</date><risdate>1991</risdate><abstract>An improved interferometric spectrum analyser system with direction finding capabilities for an emitting source, the type having a holographic element to provide a laser beam source for the system. The laser beam from the source is focused on a light waveguide within which are arranged in asymmetrical configuration with respect to the direction of the laser beam source a plurality of antenna signal transducers and a plurality of reference signal transducers, the antenna signal transducers and the reference signal transducers respectively being arranged in adjacent rows in such a manner as to provide acoustic signals propagating in the same direction within the transducer. A lens assembly is positioned with respect to the light waveguide so as to provide a one-dimensional Fourier transform signal on the x-axis of the waveguide by causing the mixing of the Fourier transform signal of the antenna signal and the Fourier transform signal of the reference signal. The analyser according to the present invention is more compact and less sensitive to vibration than currently available systems.</abstract><edition>5</edition><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre |
| recordid | cdi_epo_espacenet_CA1285048C |
| source | esp@cenet |
| subjects | ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING |
| title | INTEGRATED-OPTICS IMPLEMENTATION OF AN INTERFEROMETRIC SPECTRUM ANALYSER |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-04T17%3A06%3A58IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=BROUSSEAU,%20NICOLE&rft.date=1991-06-18&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3ECA1285048C%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |