Electromagnetic wave quantum well modulator and its use as polarizer
L'invention concerne un modulateur permettant de moduler une onde ν1 , du domaine infra-rouge moyen, par un signal modulant l'amplitude d'une autre onde électromagnétique, ν2 , du domaine infra-rouge proche. Il comporte : une couche centrale (2), telle que les électrons de la bande de...
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| creator | PAPUCHON, MICHEL DELACOURT, DOMINIQUE POCHOLLE, JEAN-PAUL |
| description | L'invention concerne un modulateur permettant de moduler une onde ν1 , du domaine infra-rouge moyen, par un signal modulant l'amplitude d'une autre onde électromagnétique, ν2 , du domaine infra-rouge proche. Il comporte : une couche centrale (2), telle que les électrons de la bande de conduction possèdent au moins deux niveaux discrets d'énergie permis (e1 , e2) dont la différence d'énergie correspond à une fréquence (ν1°) proche de la fréquence ν1 de l'onde à moduler ; et telle que les trous de la bande de valence possèdent des niveaux d'énergie permis (h1 , h2 , ...) tels que la différence d'énergie entre le niveau fondamental permis pour les trous (h1) dans la bande de valence et le niveau fondamental (e1) permis pour les électrons dans la bande de conduction, a une valeur (ν2°) proche de celle correspondant à la fréquence (ν2) de l'onde de commande. Application à l'optique guidée active, dans le domaine infra-rouge moyen.
The invention relates to a modulator enabling a wave nu 1 in the mid-infrared band to be modulated by a signal modulating the amplitude of another electromagnetic wave, nu 2, in the near-infrared band. It comprises: a central layer (2), such that the electrons in the conduction band have at least two discrete allowed energy levels (e1, e2) whose energy difference corresponds to a frequency ( nu 1 ) close to the frequency nu 1 of the wave to be modulated; and such that the holes in the valence band have allowed energy levels (h1, h2, ...) such that the energy difference between the allowed ground state for the holes (h1) in the valence band and the allowed ground state (e1) for the electrons in the conduction band, has a value ( nu 2 ) close to that corresponding to the frequency ( nu 2) of the control wave.
Application to active guided optics in the mid-infrared band. |
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The invention relates to a modulator enabling a wave nu 1 in the mid-infrared band to be modulated by a signal modulating the amplitude of another electromagnetic wave, nu 2, in the near-infrared band. It comprises: a central layer (2), such that the electrons in the conduction band have at least two discrete allowed energy levels (e1, e2) whose energy difference corresponds to a frequency ( nu 1 ) close to the frequency nu 1 of the wave to be modulated; and such that the holes in the valence band have allowed energy levels (h1, h2, ...) such that the energy difference between the allowed ground state for the holes (h1) in the valence band and the allowed ground state (e1) for the electrons in the conduction band, has a value ( nu 2 ) close to that corresponding to the frequency ( nu 2) of the control wave.
Application to active guided optics in the mid-infrared band.</description><language>eng ; fre ; ger</language><subject>BASIC ELECTRONIC CIRCUITRY ; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING ; ELECTRICITY ; FREQUENCY-CHANGING ; MODULATION ; NON-LINEAR OPTICS ; OPTICAL ANALOGUE/DIGITAL CONVERTERS ; OPTICAL LOGIC ELEMENTS ; OPTICS ; PHYSICS ; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF</subject><creationdate>1989</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=19890308&DB=EPODOC&CC=EP&NR=0306400A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19890308&DB=EPODOC&CC=EP&NR=0306400A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>PAPUCHON, MICHEL</creatorcontrib><creatorcontrib>DELACOURT, DOMINIQUE</creatorcontrib><creatorcontrib>POCHOLLE, JEAN-PAUL</creatorcontrib><title>Electromagnetic wave quantum well modulator and its use as polarizer</title><description>L'invention concerne un modulateur permettant de moduler une onde ν1 , du domaine infra-rouge moyen, par un signal modulant l'amplitude d'une autre onde électromagnétique, ν2 , du domaine infra-rouge proche. Il comporte : une couche centrale (2), telle que les électrons de la bande de conduction possèdent au moins deux niveaux discrets d'énergie permis (e1 , e2) dont la différence d'énergie correspond à une fréquence (ν1°) proche de la fréquence ν1 de l'onde à moduler ; et telle que les trous de la bande de valence possèdent des niveaux d'énergie permis (h1 , h2 , ...) tels que la différence d'énergie entre le niveau fondamental permis pour les trous (h1) dans la bande de valence et le niveau fondamental (e1) permis pour les électrons dans la bande de conduction, a une valeur (ν2°) proche de celle correspondant à la fréquence (ν2) de l'onde de commande. Application à l'optique guidée active, dans le domaine infra-rouge moyen.
The invention relates to a modulator enabling a wave nu 1 in the mid-infrared band to be modulated by a signal modulating the amplitude of another electromagnetic wave, nu 2, in the near-infrared band. It comprises: a central layer (2), such that the electrons in the conduction band have at least two discrete allowed energy levels (e1, e2) whose energy difference corresponds to a frequency ( nu 1 ) close to the frequency nu 1 of the wave to be modulated; and such that the holes in the valence band have allowed energy levels (h1, h2, ...) such that the energy difference between the allowed ground state for the holes (h1) in the valence band and the allowed ground state (e1) for the electrons in the conduction band, has a value ( nu 2 ) close to that corresponding to the frequency ( nu 2) of the control wave.
Application to active guided optics in the mid-infrared band.</description><subject>BASIC ELECTRONIC CIRCUITRY</subject><subject>DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING</subject><subject>ELECTRICITY</subject><subject>FREQUENCY-CHANGING</subject><subject>MODULATION</subject><subject>NON-LINEAR OPTICS</subject><subject>OPTICAL ANALOGUE/DIGITAL CONVERTERS</subject><subject>OPTICAL LOGIC ELEMENTS</subject><subject>OPTICS</subject><subject>PHYSICS</subject><subject>TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1989</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNzDEKAjEQQNE0FrJ6h7mAEFmxFzdiuYX9MmRHCUwyMZm44Om18ABWv3n8tRkck9ciER-JNHhY8EXwbJi0RViIGaLMjVGlAKYZglZolQArZGEs4U1lY1Z35ErbXzsDF3c7X3eUZaKa0dN3PrnR9vZ4sPa07_8gH4OwMqg</recordid><startdate>19890308</startdate><enddate>19890308</enddate><creator>PAPUCHON, MICHEL</creator><creator>DELACOURT, DOMINIQUE</creator><creator>POCHOLLE, JEAN-PAUL</creator><scope>EVB</scope></search><sort><creationdate>19890308</creationdate><title>Electromagnetic wave quantum well modulator and its use as polarizer</title><author>PAPUCHON, MICHEL ; DELACOURT, DOMINIQUE ; POCHOLLE, JEAN-PAUL</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP0306400A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>1989</creationdate><topic>BASIC ELECTRONIC CIRCUITRY</topic><topic>DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING</topic><topic>ELECTRICITY</topic><topic>FREQUENCY-CHANGING</topic><topic>MODULATION</topic><topic>NON-LINEAR OPTICS</topic><topic>OPTICAL ANALOGUE/DIGITAL CONVERTERS</topic><topic>OPTICAL LOGIC ELEMENTS</topic><topic>OPTICS</topic><topic>PHYSICS</topic><topic>TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF</topic><toplevel>online_resources</toplevel><creatorcontrib>PAPUCHON, MICHEL</creatorcontrib><creatorcontrib>DELACOURT, DOMINIQUE</creatorcontrib><creatorcontrib>POCHOLLE, JEAN-PAUL</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>PAPUCHON, MICHEL</au><au>DELACOURT, DOMINIQUE</au><au>POCHOLLE, JEAN-PAUL</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Electromagnetic wave quantum well modulator and its use as polarizer</title><date>1989-03-08</date><risdate>1989</risdate><abstract>L'invention concerne un modulateur permettant de moduler une onde ν1 , du domaine infra-rouge moyen, par un signal modulant l'amplitude d'une autre onde électromagnétique, ν2 , du domaine infra-rouge proche. Il comporte : une couche centrale (2), telle que les électrons de la bande de conduction possèdent au moins deux niveaux discrets d'énergie permis (e1 , e2) dont la différence d'énergie correspond à une fréquence (ν1°) proche de la fréquence ν1 de l'onde à moduler ; et telle que les trous de la bande de valence possèdent des niveaux d'énergie permis (h1 , h2 , ...) tels que la différence d'énergie entre le niveau fondamental permis pour les trous (h1) dans la bande de valence et le niveau fondamental (e1) permis pour les électrons dans la bande de conduction, a une valeur (ν2°) proche de celle correspondant à la fréquence (ν2) de l'onde de commande. Application à l'optique guidée active, dans le domaine infra-rouge moyen.
The invention relates to a modulator enabling a wave nu 1 in the mid-infrared band to be modulated by a signal modulating the amplitude of another electromagnetic wave, nu 2, in the near-infrared band. It comprises: a central layer (2), such that the electrons in the conduction band have at least two discrete allowed energy levels (e1, e2) whose energy difference corresponds to a frequency ( nu 1 ) close to the frequency nu 1 of the wave to be modulated; and such that the holes in the valence band have allowed energy levels (h1, h2, ...) such that the energy difference between the allowed ground state for the holes (h1) in the valence band and the allowed ground state (e1) for the electrons in the conduction band, has a value ( nu 2 ) close to that corresponding to the frequency ( nu 2) of the control wave.
Application to active guided optics in the mid-infrared band.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRONIC CIRCUITRY DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING ELECTRICITY FREQUENCY-CHANGING MODULATION NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF |
| title | Electromagnetic wave quantum well modulator and its use as polarizer |
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