High sensitivity fiber optic strain sensor based on CFBG-FPI and vernier effect
A high-sensitivity fiber optic strain sensor based on chirped fiber Bragg grating-Fabry Perot interferometer (CFBG-FPI) and vernier effect is proposed and has been demonstrated to have a strain sensitivity of -123.8 pm/μϵ. With femtosecond laser direct writing technology, two pairs of CFBGs with the...
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| Veröffentlicht in: | Journal of lightwave technology 2023-11, Vol.41 (21), p.1-8 |
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| container_title | Journal of lightwave technology |
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| creator | Pan, Xue-Peng Yang, He-Er Liu, Shan-Ren Wang, Bo Gao, Meng-Meng Guo, Qi Chen, Qi-Dai Bo Sun, Hong Yu, Yong-Sen |
| description | A high-sensitivity fiber optic strain sensor based on chirped fiber Bragg grating-Fabry Perot interferometer (CFBG-FPI) and vernier effect is proposed and has been demonstrated to have a strain sensitivity of -123.8 pm/μϵ. With femtosecond laser direct writing technology, two pairs of CFBGs with the same reflectivity, length, chirp rate and center wavelength are inscribed inside the single-mode fiber core, forming two separated CFBG-FPIs. Combined with the vernier effect principle, the interferometric cavity lengths of the two CFBG-FPIs were designed at about 1.7 mm and 1.68 mm as the reference arm and sensing arm, respectively, to form the vernier effect system, and the spacing between the reference arm and the sensing arm was 1 m. Experimental results show that in this vernier effect system, the strain sensitivity gain due to the vernier effect reaches a staggering 91-fold relative to a single CFBG-FPI, resulting in an ultra-high sensitivity of -123.8 pm/μϵ. In addition to being compact and convenient to manufacture, the sensor exhibits a low temperature cross-sensitivity down to -0.14 μϵ/°C. The many advantages make this sensor extremely promising for high-precision strain measurement applications. |
| doi_str_mv | 10.1109/JLT.2023.3291413 |
| format | Article |
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With femtosecond laser direct writing technology, two pairs of CFBGs with the same reflectivity, length, chirp rate and center wavelength are inscribed inside the single-mode fiber core, forming two separated CFBG-FPIs. Combined with the vernier effect principle, the interferometric cavity lengths of the two CFBG-FPIs were designed at about 1.7 mm and 1.68 mm as the reference arm and sensing arm, respectively, to form the vernier effect system, and the spacing between the reference arm and the sensing arm was 1 m. Experimental results show that in this vernier effect system, the strain sensitivity gain due to the vernier effect reaches a staggering 91-fold relative to a single CFBG-FPI, resulting in an ultra-high sensitivity of -123.8 pm/μϵ. In addition to being compact and convenient to manufacture, the sensor exhibits a low temperature cross-sensitivity down to -0.14 μϵ/°C. The many advantages make this sensor extremely promising for high-precision strain measurement applications.</description><identifier>ISSN: 0733-8724</identifier><identifier>EISSN: 1558-2213</identifier><identifier>DOI: 10.1109/JLT.2023.3291413</identifier><identifier>CODEN: JLTEDG</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Bragg gratings ; Chirped fiber Bragg grating ; Direct laser writing ; Fabry Perot interferometer ; Femtosecond laser ; Fiber optic strain sensor ; Fiber optics ; Interferometers ; Low temperature ; Optical device fabrication ; Optical fiber sensors ; Optical interferometry ; Sensitivity ; Sensors ; Strain ; Strain measurement ; Ultrafast optics ; Vernier effect</subject><ispartof>Journal of lightwave technology, 2023-11, Vol.41 (21), p.1-8</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2023</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c292t-7a4179f357f5a9ca8226a8845b0d5b32be9d615385e2ad42a6484a02f5dd93533</citedby><cites>FETCH-LOGICAL-c292t-7a4179f357f5a9ca8226a8845b0d5b32be9d615385e2ad42a6484a02f5dd93533</cites><orcidid>0000-0003-2127-8610 ; 0000-0003-1614-1556 ; 0000-0002-0921-7973 ; 0009-0008-7774-5023</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/10171352$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,780,784,796,27924,27925,54758</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/10171352$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Pan, Xue-Peng</creatorcontrib><creatorcontrib>Yang, He-Er</creatorcontrib><creatorcontrib>Liu, Shan-Ren</creatorcontrib><creatorcontrib>Wang, Bo</creatorcontrib><creatorcontrib>Gao, Meng-Meng</creatorcontrib><creatorcontrib>Guo, Qi</creatorcontrib><creatorcontrib>Chen, Qi-Dai</creatorcontrib><creatorcontrib>Bo Sun, Hong</creatorcontrib><creatorcontrib>Yu, Yong-Sen</creatorcontrib><title>High sensitivity fiber optic strain sensor based on CFBG-FPI and vernier effect</title><title>Journal of lightwave technology</title><addtitle>JLT</addtitle><description>A high-sensitivity fiber optic strain sensor based on chirped fiber Bragg grating-Fabry Perot interferometer (CFBG-FPI) and vernier effect is proposed and has been demonstrated to have a strain sensitivity of -123.8 pm/μϵ. With femtosecond laser direct writing technology, two pairs of CFBGs with the same reflectivity, length, chirp rate and center wavelength are inscribed inside the single-mode fiber core, forming two separated CFBG-FPIs. Combined with the vernier effect principle, the interferometric cavity lengths of the two CFBG-FPIs were designed at about 1.7 mm and 1.68 mm as the reference arm and sensing arm, respectively, to form the vernier effect system, and the spacing between the reference arm and the sensing arm was 1 m. Experimental results show that in this vernier effect system, the strain sensitivity gain due to the vernier effect reaches a staggering 91-fold relative to a single CFBG-FPI, resulting in an ultra-high sensitivity of -123.8 pm/μϵ. In addition to being compact and convenient to manufacture, the sensor exhibits a low temperature cross-sensitivity down to -0.14 μϵ/°C. The many advantages make this sensor extremely promising for high-precision strain measurement applications.</description><subject>Bragg gratings</subject><subject>Chirped fiber Bragg grating</subject><subject>Direct laser writing</subject><subject>Fabry Perot interferometer</subject><subject>Femtosecond laser</subject><subject>Fiber optic strain sensor</subject><subject>Fiber optics</subject><subject>Interferometers</subject><subject>Low temperature</subject><subject>Optical device fabrication</subject><subject>Optical fiber sensors</subject><subject>Optical interferometry</subject><subject>Sensitivity</subject><subject>Sensors</subject><subject>Strain</subject><subject>Strain measurement</subject><subject>Ultrafast optics</subject><subject>Vernier effect</subject><issn>0733-8724</issn><issn>1558-2213</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpNkD1PwzAQQC0EEqWwMzBYYk6x7-zaHqGiH6hSGcpsOYkNriApdorUf09KOzDdcO_dSY-QW85GnDPz8LJcj4ABjhAMFxzPyIBLqQsAjudkwBRioRWIS3KV84YxLoRWA7Kax_cPmn2TYxd_YrenIZY-0XbbxYrmLrnY_K3bREuXfU3bhk6mT7Ni-rqgrqnpj09N7A0fgq-6a3IR3Gf2N6c5JG_T5_VkXixXs8XkcVlUYKArlBNcmYBSBelM5TTA2GktZMlqWSKU3tRjLlFLD64W4MZCC8cgyLo2KBGH5P54d5va753Pnd20u9T0Ly1oZVCp3ugpdqSq1OacfLDbFL9c2lvO7CGb7bPZQzZ7ytYrd0cleu__4VxxlIC_EEZnMg</recordid><startdate>20231101</startdate><enddate>20231101</enddate><creator>Pan, Xue-Peng</creator><creator>Yang, He-Er</creator><creator>Liu, Shan-Ren</creator><creator>Wang, Bo</creator><creator>Gao, Meng-Meng</creator><creator>Guo, Qi</creator><creator>Chen, Qi-Dai</creator><creator>Bo Sun, Hong</creator><creator>Yu, Yong-Sen</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0003-2127-8610</orcidid><orcidid>https://orcid.org/0000-0003-1614-1556</orcidid><orcidid>https://orcid.org/0000-0002-0921-7973</orcidid><orcidid>https://orcid.org/0009-0008-7774-5023</orcidid></search><sort><creationdate>20231101</creationdate><title>High sensitivity fiber optic strain sensor based on CFBG-FPI and vernier effect</title><author>Pan, Xue-Peng ; Yang, He-Er ; Liu, Shan-Ren ; Wang, Bo ; Gao, Meng-Meng ; Guo, Qi ; Chen, Qi-Dai ; Bo Sun, Hong ; Yu, Yong-Sen</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c292t-7a4179f357f5a9ca8226a8845b0d5b32be9d615385e2ad42a6484a02f5dd93533</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Bragg gratings</topic><topic>Chirped fiber Bragg grating</topic><topic>Direct laser writing</topic><topic>Fabry Perot interferometer</topic><topic>Femtosecond laser</topic><topic>Fiber optic strain sensor</topic><topic>Fiber optics</topic><topic>Interferometers</topic><topic>Low temperature</topic><topic>Optical device fabrication</topic><topic>Optical fiber sensors</topic><topic>Optical interferometry</topic><topic>Sensitivity</topic><topic>Sensors</topic><topic>Strain</topic><topic>Strain measurement</topic><topic>Ultrafast optics</topic><topic>Vernier effect</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pan, Xue-Peng</creatorcontrib><creatorcontrib>Yang, He-Er</creatorcontrib><creatorcontrib>Liu, Shan-Ren</creatorcontrib><creatorcontrib>Wang, Bo</creatorcontrib><creatorcontrib>Gao, Meng-Meng</creatorcontrib><creatorcontrib>Guo, Qi</creatorcontrib><creatorcontrib>Chen, Qi-Dai</creatorcontrib><creatorcontrib>Bo Sun, Hong</creatorcontrib><creatorcontrib>Yu, Yong-Sen</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of lightwave technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Pan, Xue-Peng</au><au>Yang, He-Er</au><au>Liu, Shan-Ren</au><au>Wang, Bo</au><au>Gao, Meng-Meng</au><au>Guo, Qi</au><au>Chen, Qi-Dai</au><au>Bo Sun, Hong</au><au>Yu, Yong-Sen</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>High sensitivity fiber optic strain sensor based on CFBG-FPI and vernier effect</atitle><jtitle>Journal of lightwave technology</jtitle><stitle>JLT</stitle><date>2023-11-01</date><risdate>2023</risdate><volume>41</volume><issue>21</issue><spage>1</spage><epage>8</epage><pages>1-8</pages><issn>0733-8724</issn><eissn>1558-2213</eissn><coden>JLTEDG</coden><abstract>A high-sensitivity fiber optic strain sensor based on chirped fiber Bragg grating-Fabry Perot interferometer (CFBG-FPI) and vernier effect is proposed and has been demonstrated to have a strain sensitivity of -123.8 pm/μϵ. With femtosecond laser direct writing technology, two pairs of CFBGs with the same reflectivity, length, chirp rate and center wavelength are inscribed inside the single-mode fiber core, forming two separated CFBG-FPIs. Combined with the vernier effect principle, the interferometric cavity lengths of the two CFBG-FPIs were designed at about 1.7 mm and 1.68 mm as the reference arm and sensing arm, respectively, to form the vernier effect system, and the spacing between the reference arm and the sensing arm was 1 m. Experimental results show that in this vernier effect system, the strain sensitivity gain due to the vernier effect reaches a staggering 91-fold relative to a single CFBG-FPI, resulting in an ultra-high sensitivity of -123.8 pm/μϵ. In addition to being compact and convenient to manufacture, the sensor exhibits a low temperature cross-sensitivity down to -0.14 μϵ/°C. 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| subjects | Bragg gratings Chirped fiber Bragg grating Direct laser writing Fabry Perot interferometer Femtosecond laser Fiber optic strain sensor Fiber optics Interferometers Low temperature Optical device fabrication Optical fiber sensors Optical interferometry Sensitivity Sensors Strain Strain measurement Ultrafast optics Vernier effect |
| title | High sensitivity fiber optic strain sensor based on CFBG-FPI and vernier effect |
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