Optical modulator
In an optical modulator, a first electrode portion having a plurality of first electrodes is provided on the upper surface of a base part having a periodically-poled structure and a second electrode portion is provided on the lower surface thereof, and voltage is applied in one direction between the...
Gespeichert in:
| Hauptverfasser: | , |
|---|---|
| Format: | Patent |
| Sprache: | eng ; fre ; ger |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | |
| container_title | |
| container_volume | |
| creator | Okazaki, Masahide Suhara, Toshiaki |
| description | In an optical modulator, a first electrode portion having a plurality of first electrodes is provided on the upper surface of a base part having a periodically-poled structure and a second electrode portion is provided on the lower surface thereof, and voltage is applied in one direction between the first electrode portion and the second electrode portion, to thereby cause a periodic change of the refractive index in a polarization-part array direction in the periodically-poled structure and diffract light which enters the base part. This allows reduction in the voltage applied between the first electrode portion and the second electrode portion, and it is thereby possible to form a desired electric field inside the periodically-poled structure while achieving a high-density channel arrangement. By reducing the voltage, the rate of the optical modulation performed by the optical modulator can be increased. |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_EP2202568B1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>EP2202568B1</sourcerecordid><originalsourceid>FETCH-epo_espacenet_EP2202568B13</originalsourceid><addsrcrecordid>eNrjZBD0LyjJTE7MUcjNTynNSSzJL-JhYE1LzClO5YXS3AwKbq4hzh66qQX58anFBYnJqXmpJfGuAUZGBkamZhZOhsZEKAEAoQEfVw</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Optical modulator</title><source>esp@cenet</source><creator>Okazaki, Masahide ; Suhara, Toshiaki</creator><creatorcontrib>Okazaki, Masahide ; Suhara, Toshiaki</creatorcontrib><description>In an optical modulator, a first electrode portion having a plurality of first electrodes is provided on the upper surface of a base part having a periodically-poled structure and a second electrode portion is provided on the lower surface thereof, and voltage is applied in one direction between the first electrode portion and the second electrode portion, to thereby cause a periodic change of the refractive index in a polarization-part array direction in the periodically-poled structure and diffract light which enters the base part. This allows reduction in the voltage applied between the first electrode portion and the second electrode portion, and it is thereby possible to form a desired electric field inside the periodically-poled structure while achieving a high-density channel arrangement. By reducing the voltage, the rate of the optical modulation performed by the optical modulator can be increased.</description><language>eng ; fre ; ger</language><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 ; FREQUENCY-CHANGING ; NON-LINEAR OPTICS ; OPTICAL ANALOGUE/DIGITAL CONVERTERS ; OPTICAL LOGIC ELEMENTS ; OPTICS ; PHYSICS ; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF</subject><creationdate>2018</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=20180905&DB=EPODOC&CC=EP&NR=2202568B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20180905&DB=EPODOC&CC=EP&NR=2202568B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Okazaki, Masahide</creatorcontrib><creatorcontrib>Suhara, Toshiaki</creatorcontrib><title>Optical modulator</title><description>In an optical modulator, a first electrode portion having a plurality of first electrodes is provided on the upper surface of a base part having a periodically-poled structure and a second electrode portion is provided on the lower surface thereof, and voltage is applied in one direction between the first electrode portion and the second electrode portion, to thereby cause a periodic change of the refractive index in a polarization-part array direction in the periodically-poled structure and diffract light which enters the base part. This allows reduction in the voltage applied between the first electrode portion and the second electrode portion, and it is thereby possible to form a desired electric field inside the periodically-poled structure while achieving a high-density channel arrangement. By reducing the voltage, the rate of the optical modulation performed by the optical modulator can be increased.</description><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>FREQUENCY-CHANGING</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>2018</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBD0LyjJTE7MUcjNTynNSSzJL-JhYE1LzClO5YXS3AwKbq4hzh66qQX58anFBYnJqXmpJfGuAUZGBkamZhZOhsZEKAEAoQEfVw</recordid><startdate>20180905</startdate><enddate>20180905</enddate><creator>Okazaki, Masahide</creator><creator>Suhara, Toshiaki</creator><scope>EVB</scope></search><sort><creationdate>20180905</creationdate><title>Optical modulator</title><author>Okazaki, Masahide ; Suhara, Toshiaki</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP2202568B13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2018</creationdate><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>FREQUENCY-CHANGING</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>Okazaki, Masahide</creatorcontrib><creatorcontrib>Suhara, Toshiaki</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Okazaki, Masahide</au><au>Suhara, Toshiaki</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Optical modulator</title><date>2018-09-05</date><risdate>2018</risdate><abstract>In an optical modulator, a first electrode portion having a plurality of first electrodes is provided on the upper surface of a base part having a periodically-poled structure and a second electrode portion is provided on the lower surface thereof, and voltage is applied in one direction between the first electrode portion and the second electrode portion, to thereby cause a periodic change of the refractive index in a polarization-part array direction in the periodically-poled structure and diffract light which enters the base part. This allows reduction in the voltage applied between the first electrode portion and the second electrode portion, and it is thereby possible to form a desired electric field inside the periodically-poled structure while achieving a high-density channel arrangement. By reducing the voltage, the rate of the optical modulation performed by the optical modulator can be increased.</abstract><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | |
| ispartof | |
| issn | |
| language | eng ; fre ; ger |
| recordid | cdi_epo_espacenet_EP2202568B1 |
| source | esp@cenet |
| subjects | 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 FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF |
| title | Optical modulator |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-22T11%3A50%3A59IST&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=Okazaki,%20Masahide&rft.date=2018-09-05&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EEP2202568B1%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 |