LASER SENSOR MODULE FOR SELF-MIXING INTERFEROMETRY
A laser sensor module includes a first laser source configured to emit first modulated light, the first modulated light being modulated laser light. The laser sensor module further includes circuitry configured to drive the first laser source with a first modulated driving current to cause the first...
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| creator | Hellmig, Jochen Dragt, Jeroen Spruit, Hans Hoeven, Pieter Van der Lee, Alexander Marc |
| description | A laser sensor module includes a first laser source configured to emit first modulated light, the first modulated light being modulated laser light. The laser sensor module further includes circuitry configured to drive the first laser source with a first modulated driving current to cause the first laser source to emit the modulated laser light, a detector configured to detect the modulated laser light, which induces a photocurrent with variations resulting from modulation of the modulated laser light, and a second laser source configured to emit second modulated light. The circuitry is further configured to drive the second laser source with a second modulated driving current to cause the second laser source to emit the second modulated light. The detector is configured to detect the second modulated light. The circuitry is configured to adapt the amplitude of the second modulated driving current to induce a contribution to the photocurrent. |
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The laser sensor module further includes circuitry configured to drive the first laser source with a first modulated driving current to cause the first laser source to emit the modulated laser light, a detector configured to detect the modulated laser light, which induces a photocurrent with variations resulting from modulation of the modulated laser light, and a second laser source configured to emit second modulated light. The circuitry is further configured to drive the second laser source with a second modulated driving current to cause the second laser source to emit the second modulated light. The detector is configured to detect the second modulated light. The circuitry is configured to adapt the amplitude of the second modulated driving current to induce a contribution to the photocurrent.</description><language>eng</language><subject>BASIC ELECTRIC ELEMENTS ; DEVICES USING STIMULATED EMISSION ; ELECTRICITY ; MEASURING ; MEASURING ANGLES ; MEASURING AREAS ; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS ; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS ; PHYSICS ; TESTING</subject><creationdate>2022</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=20220317&DB=EPODOC&CC=US&NR=2022082369A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220317&DB=EPODOC&CC=US&NR=2022082369A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Hellmig, Jochen</creatorcontrib><creatorcontrib>Dragt, Jeroen</creatorcontrib><creatorcontrib>Spruit, Hans</creatorcontrib><creatorcontrib>Hoeven, Pieter</creatorcontrib><creatorcontrib>Van der Lee, Alexander Marc</creatorcontrib><title>LASER SENSOR MODULE FOR SELF-MIXING INTERFEROMETRY</title><description>A laser sensor module includes a first laser source configured to emit first modulated light, the first modulated light being modulated laser light. The laser sensor module further includes circuitry configured to drive the first laser source with a first modulated driving current to cause the first laser source to emit the modulated laser light, a detector configured to detect the modulated laser light, which induces a photocurrent with variations resulting from modulation of the modulated laser light, and a second laser source configured to emit second modulated light. The circuitry is further configured to drive the second laser source with a second modulated driving current to cause the second laser source to emit the second modulated light. The detector is configured to detect the second modulated light. The circuitry is configured to adapt the amplitude of the second modulated driving current to induce a contribution to the photocurrent.</description><subject>BASIC ELECTRIC ELEMENTS</subject><subject>DEVICES USING STIMULATED EMISSION</subject><subject>ELECTRICITY</subject><subject>MEASURING</subject><subject>MEASURING ANGLES</subject><subject>MEASURING AREAS</subject><subject>MEASURING IRREGULARITIES OF SURFACES OR CONTOURS</subject><subject>MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS</subject><subject>PHYSICS</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDDycQx2DVIIdvUL9g9S8PV3CfVxVXDzB4n4uOn6ekZ4-rkrePqFuAa5uQb5-7qGBEXyMLCmJeYUp_JCaW4GZTfXEGcP3dSC_PjU4oLE5NS81JL40GAjAyMjAwsjYzNLR0Nj4lQBADEeKBE</recordid><startdate>20220317</startdate><enddate>20220317</enddate><creator>Hellmig, Jochen</creator><creator>Dragt, Jeroen</creator><creator>Spruit, Hans</creator><creator>Hoeven, Pieter</creator><creator>Van der Lee, Alexander Marc</creator><scope>EVB</scope></search><sort><creationdate>20220317</creationdate><title>LASER SENSOR MODULE FOR SELF-MIXING INTERFEROMETRY</title><author>Hellmig, Jochen ; Dragt, Jeroen ; Spruit, Hans ; Hoeven, Pieter ; Van der Lee, Alexander Marc</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2022082369A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2022</creationdate><topic>BASIC ELECTRIC ELEMENTS</topic><topic>DEVICES USING STIMULATED EMISSION</topic><topic>ELECTRICITY</topic><topic>MEASURING</topic><topic>MEASURING ANGLES</topic><topic>MEASURING AREAS</topic><topic>MEASURING IRREGULARITIES OF SURFACES OR CONTOURS</topic><topic>MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS</topic><topic>PHYSICS</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>Hellmig, Jochen</creatorcontrib><creatorcontrib>Dragt, Jeroen</creatorcontrib><creatorcontrib>Spruit, Hans</creatorcontrib><creatorcontrib>Hoeven, Pieter</creatorcontrib><creatorcontrib>Van der Lee, Alexander Marc</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Hellmig, Jochen</au><au>Dragt, Jeroen</au><au>Spruit, Hans</au><au>Hoeven, Pieter</au><au>Van der Lee, Alexander Marc</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>LASER SENSOR MODULE FOR SELF-MIXING INTERFEROMETRY</title><date>2022-03-17</date><risdate>2022</risdate><abstract>A laser sensor module includes a first laser source configured to emit first modulated light, the first modulated light being modulated laser light. The laser sensor module further includes circuitry configured to drive the first laser source with a first modulated driving current to cause the first laser source to emit the modulated laser light, a detector configured to detect the modulated laser light, which induces a photocurrent with variations resulting from modulation of the modulated laser light, and a second laser source configured to emit second modulated light. The circuitry is further configured to drive the second laser source with a second modulated driving current to cause the second laser source to emit the second modulated light. The detector is configured to detect the second modulated light. The circuitry is configured to adapt the amplitude of the second modulated driving current to induce a contribution to the photocurrent.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRIC ELEMENTS DEVICES USING STIMULATED EMISSION ELECTRICITY MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS TESTING |
| title | LASER SENSOR MODULE FOR SELF-MIXING INTERFEROMETRY |
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