TWO-CORE OPTICAL FIBER FOR DISTRIBUTED FIBER SENSOR AND SYSTEM

To provide a Brillouin distributed fiber sensor system, a fiber sensor and a two-core optical fiber for use in the Brillouin distributed fiber sensor system.SOLUTION: The two-core fiber 10 has a first and second cores 20 and 30. Each of the core 20 and 30 is configured to exhibit a Brillouin frequen...

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Hauptverfasser: LI SHENPING, BRETT JASON HOOVER, LI MING-JUN
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creator LI SHENPING
BRETT JASON HOOVER
LI MING-JUN
description To provide a Brillouin distributed fiber sensor system, a fiber sensor and a two-core optical fiber for use in the Brillouin distributed fiber sensor system.SOLUTION: The two-core fiber 10 has a first and second cores 20 and 30. Each of the core 20 and 30 is configured to exhibit a Brillouin frequency shift greater than 30 MHz relative to other cores 20 and 30. Each of the core 20 and 30 possesses temperature coefficient and distortion coefficient different from other core 20 and 30. The cores 20 and 30 can be configured to produce the Brillouin frequency shift level of at least 30 MHz to each other. These differences in shift levels of each of the core 20 and 30 can be effected by adjustment of material composition, a doping concentration and/or refractive index profiles of each of the cores 20 and 30 . These optical fibers 10 can also be used in BOTDR-based and BOTDA -based sensor systems and arrangements.SELECTED DRAWING: Figure 1 【課題】ブリルアン分布ファイバセンサシステム、当該システムに用いるためのファイバセンサおよび2コア光ファイバを提供する。【解決手段】2コアファイバ10は第1及び第2のコア20,30を有する。それぞれのコア20,30は他方のコア20,30に対して30MHzより大きいブリルアン周波数シフトを示すように構成される。それぞれのコア20,30は他方のコア20,30とは異なる温度係数及び歪係数を有する。コア20,30は相互に少なくとも30MHzのブリルアン周波数シフトレベルを生じるように構成することができる。シフトレベルのこれらの差はコア20,30のそれぞれの、材料組成、ドーピング濃度及び/または屈折率プロファイルの調節によって生じさせることができる。これらの光ファイバ10は、BOTDR及びBOTDAに基づくセンサシステム及び装置に用いることもできる。【選択図】図1
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Each of the core 20 and 30 is configured to exhibit a Brillouin frequency shift greater than 30 MHz relative to other cores 20 and 30. Each of the core 20 and 30 possesses temperature coefficient and distortion coefficient different from other core 20 and 30. The cores 20 and 30 can be configured to produce the Brillouin frequency shift level of at least 30 MHz to each other. These differences in shift levels of each of the core 20 and 30 can be effected by adjustment of material composition, a doping concentration and/or refractive index profiles of each of the cores 20 and 30 . These optical fibers 10 can also be used in BOTDR-based and BOTDA -based sensor systems and arrangements.SELECTED DRAWING: Figure 1 【課題】ブリルアン分布ファイバセンサシステム、当該システムに用いるためのファイバセンサおよび2コア光ファイバを提供する。【解決手段】2コアファイバ10は第1及び第2のコア20,30を有する。それぞれのコア20,30は他方のコア20,30に対して30MHzより大きいブリルアン周波数シフトを示すように構成される。それぞれのコア20,30は他方のコア20,30とは異なる温度係数及び歪係数を有する。コア20,30は相互に少なくとも30MHzのブリルアン周波数シフトレベルを生じるように構成することができる。シフトレベルのこれらの差はコア20,30のそれぞれの、材料組成、ドーピング濃度及び/または屈折率プロファイルの調節によって生じさせることができる。これらの光ファイバ10は、BOTDR及びBOTDAに基づくセンサシステム及び装置に用いることもできる。【選択図】図1</description><language>eng ; jpn</language><subject>ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS ; MEASURING ; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE ; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR ; PHYSICS ; TARIFF METERING APPARATUS ; TESTING</subject><creationdate>2019</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&amp;date=20190829&amp;DB=EPODOC&amp;CC=JP&amp;NR=2019144266A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20190829&amp;DB=EPODOC&amp;CC=JP&amp;NR=2019144266A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LI SHENPING</creatorcontrib><creatorcontrib>BRETT JASON HOOVER</creatorcontrib><creatorcontrib>LI MING-JUN</creatorcontrib><title>TWO-CORE OPTICAL FIBER FOR DISTRIBUTED FIBER SENSOR AND SYSTEM</title><description>To provide a Brillouin distributed fiber sensor system, a fiber sensor and a two-core optical fiber for use in the Brillouin distributed fiber sensor system.SOLUTION: The two-core fiber 10 has a first and second cores 20 and 30. Each of the core 20 and 30 is configured to exhibit a Brillouin frequency shift greater than 30 MHz relative to other cores 20 and 30. Each of the core 20 and 30 possesses temperature coefficient and distortion coefficient different from other core 20 and 30. The cores 20 and 30 can be configured to produce the Brillouin frequency shift level of at least 30 MHz to each other. These differences in shift levels of each of the core 20 and 30 can be effected by adjustment of material composition, a doping concentration and/or refractive index profiles of each of the cores 20 and 30 . These optical fibers 10 can also be used in BOTDR-based and BOTDA -based sensor systems and arrangements.SELECTED DRAWING: Figure 1 【課題】ブリルアン分布ファイバセンサシステム、当該システムに用いるためのファイバセンサおよび2コア光ファイバを提供する。【解決手段】2コアファイバ10は第1及び第2のコア20,30を有する。それぞれのコア20,30は他方のコア20,30に対して30MHzより大きいブリルアン周波数シフトを示すように構成される。それぞれのコア20,30は他方のコア20,30とは異なる温度係数及び歪係数を有する。コア20,30は相互に少なくとも30MHzのブリルアン周波数シフトレベルを生じるように構成することができる。シフトレベルのこれらの差はコア20,30のそれぞれの、材料組成、ドーピング濃度及び/または屈折率プロファイルの調節によって生じさせることができる。これらの光ファイバ10は、BOTDR及びBOTDAに基づくセンサシステム及び装置に用いることもできる。【選択図】図1</description><subject>ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS</subject><subject>MEASURING</subject><subject>MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE</subject><subject>MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR</subject><subject>PHYSICS</subject><subject>TARIFF METERING APPARATUS</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2019</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLALCffXdfYPclXwDwjxdHb0UXDzdHINUnDzD1Jw8QwOCfJ0Cg1xdYGKBrv6BQMlHP1cFIIjg0NcfXkYWNMSc4pTeaE0N4OSm2uIs4duakF-fGpxQWJyal5qSbxXgJGBoaWhiYmRmZmjMVGKAKRkKoc</recordid><startdate>20190829</startdate><enddate>20190829</enddate><creator>LI SHENPING</creator><creator>BRETT JASON HOOVER</creator><creator>LI MING-JUN</creator><scope>EVB</scope></search><sort><creationdate>20190829</creationdate><title>TWO-CORE OPTICAL FIBER FOR DISTRIBUTED FIBER SENSOR AND SYSTEM</title><author>LI SHENPING ; BRETT JASON HOOVER ; LI MING-JUN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2019144266A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2019</creationdate><topic>ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS</topic><topic>MEASURING</topic><topic>MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE</topic><topic>MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR</topic><topic>PHYSICS</topic><topic>TARIFF METERING APPARATUS</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>LI SHENPING</creatorcontrib><creatorcontrib>BRETT JASON HOOVER</creatorcontrib><creatorcontrib>LI MING-JUN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LI SHENPING</au><au>BRETT JASON HOOVER</au><au>LI MING-JUN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>TWO-CORE OPTICAL FIBER FOR DISTRIBUTED FIBER SENSOR AND SYSTEM</title><date>2019-08-29</date><risdate>2019</risdate><abstract>To provide a Brillouin distributed fiber sensor system, a fiber sensor and a two-core optical fiber for use in the Brillouin distributed fiber sensor system.SOLUTION: The two-core fiber 10 has a first and second cores 20 and 30. 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These optical fibers 10 can also be used in BOTDR-based and BOTDA -based sensor systems and arrangements.SELECTED DRAWING: Figure 1 【課題】ブリルアン分布ファイバセンサシステム、当該システムに用いるためのファイバセンサおよび2コア光ファイバを提供する。【解決手段】2コアファイバ10は第1及び第2のコア20,30を有する。それぞれのコア20,30は他方のコア20,30に対して30MHzより大きいブリルアン周波数シフトを示すように構成される。それぞれのコア20,30は他方のコア20,30とは異なる温度係数及び歪係数を有する。コア20,30は相互に少なくとも30MHzのブリルアン周波数シフトレベルを生じるように構成することができる。シフトレベルのこれらの差はコア20,30のそれぞれの、材料組成、ドーピング濃度及び/または屈折率プロファイルの調節によって生じさせることができる。これらの光ファイバ10は、BOTDR及びBOTDAに基づくセンサシステム及び装置に用いることもできる。【選択図】図1</abstract><oa>free_for_read</oa></addata></record>
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subjects ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS
MEASURING
MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE
MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
PHYSICS
TARIFF METERING APPARATUS
TESTING
title TWO-CORE OPTICAL FIBER FOR DISTRIBUTED FIBER SENSOR AND SYSTEM
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