Precise Local Gain Extraction in a Phase-Modulated Correlation-Domain Brillouin Fiber Sensor
Background gain arising from pump-probe energy transfer at off-peak positions considerably limits the performance of a phase-modulated Brillouin optical correlation domain analysis (BOCDA) fiber sensor. Here, we deeply analyze the properties of the background gain. Then, based on its generation mech...
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| Veröffentlicht in: | Journal of lightwave technology 2024-04, Vol.42 (8), p.2997-3002 |
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| creator | Li, Zonglei Zhou, Yin Hua, Zexi Yan, Lianshan |
| description | Background gain arising from pump-probe energy transfer at off-peak positions considerably limits the performance of a phase-modulated Brillouin optical correlation domain analysis (BOCDA) fiber sensor. Here, we deeply analyze the properties of the background gain. Then, based on its generation mechanism, a simple subtraction algorithm is proposed to remove background gain from measured raw correlated gain, resulting in precise local gain extraction. There is no need to modify the current fully-optimized BOCDA setup or increase the data acquisition time. In a proof-of-concept experiment with a sensing distance of 1032.3 m and a spatial resolution of 3.5 cm, the BFS estimation error is reduced from 1.3 MHz to 0.2 MHz owing to our method. |
| doi_str_mv | 10.1109/JLT.2023.3341494 |
| format | Article |
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Here, we deeply analyze the properties of the background gain. Then, based on its generation mechanism, a simple subtraction algorithm is proposed to remove background gain from measured raw correlated gain, resulting in precise local gain extraction. There is no need to modify the current fully-optimized BOCDA setup or increase the data acquisition time. In a proof-of-concept experiment with a sensing distance of 1032.3 m and a spatial resolution of 3.5 cm, the BFS estimation error is reduced from 1.3 MHz to 0.2 MHz owing to our method.</description><identifier>ISSN: 0733-8724</identifier><identifier>EISSN: 1558-2213</identifier><identifier>DOI: 10.1109/JLT.2023.3341494</identifier><identifier>CODEN: JLTEDG</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Acoustic waves ; Algorithms ; Brillouin optical correlation domain analysis ; Correlation ; Data acquisition ; distributed optical fiber sensor ; Energy transfer ; Error reduction ; Frequency modulation ; Optical fiber communication ; Optical fiber sensors ; Probes ; Scattering ; Spatial resolution ; stimulated Brillouin scattering</subject><ispartof>Journal of lightwave technology, 2024-04, Vol.42 (8), p.2997-3002</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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In a proof-of-concept experiment with a sensing distance of 1032.3 m and a spatial resolution of 3.5 cm, the BFS estimation error is reduced from 1.3 MHz to 0.2 MHz owing to our method.</description><subject>Acoustic waves</subject><subject>Algorithms</subject><subject>Brillouin optical correlation domain analysis</subject><subject>Correlation</subject><subject>Data acquisition</subject><subject>distributed optical fiber sensor</subject><subject>Energy transfer</subject><subject>Error reduction</subject><subject>Frequency modulation</subject><subject>Optical fiber communication</subject><subject>Optical fiber sensors</subject><subject>Probes</subject><subject>Scattering</subject><subject>Spatial resolution</subject><subject>stimulated Brillouin scattering</subject><issn>0733-8724</issn><issn>1558-2213</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpNkE1LAzEQhoMoWKt3Dx4WPG_Np9k9am2rsmLBehNCkp3glu2mJrtQ_70p7cHTvAPPOwMPQtcETwjB5d1rtZpQTNmEMU54yU_QiAhR5JQSdopGWDKWF5Lyc3QR4xpjwnkhR-hrGcA2EbLKW91mC9102WzXB237xndZ2nS2_NYR8jdfD63uoc6mPgRIMQH5k9_sK4-haVs_pDRvDITsA7rowyU6c7qNcHWcY_Q5n62mz3n1vniZPlS5pVz0-b0zxnAwQJ0VNbeEYyttLQoqaidMybUwVEhntKNaanCCW-c0YdKA5aVkY3R7uLsN_meA2Ku1H0KXXiqGGWElLSRJFD5QNvgYAzi1Dc1Gh19FsNo7VMmh2jtUR4epcnOoNADwD2eCcyzYHxjibqk</recordid><startdate>20240415</startdate><enddate>20240415</enddate><creator>Li, Zonglei</creator><creator>Zhou, Yin</creator><creator>Hua, Zexi</creator><creator>Yan, Lianshan</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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Here, we deeply analyze the properties of the background gain. Then, based on its generation mechanism, a simple subtraction algorithm is proposed to remove background gain from measured raw correlated gain, resulting in precise local gain extraction. There is no need to modify the current fully-optimized BOCDA setup or increase the data acquisition time. In a proof-of-concept experiment with a sensing distance of 1032.3 m and a spatial resolution of 3.5 cm, the BFS estimation error is reduced from 1.3 MHz to 0.2 MHz owing to our method.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/JLT.2023.3341494</doi><tpages>6</tpages><orcidid>https://orcid.org/0000-0003-4008-7334</orcidid><orcidid>https://orcid.org/0000-0002-2517-0394</orcidid><orcidid>https://orcid.org/0000-0001-6263-1869</orcidid><orcidid>https://orcid.org/0000-0002-3633-7161</orcidid></addata></record> |
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| source | IEEE Electronic Library (IEL) |
| subjects | Acoustic waves Algorithms Brillouin optical correlation domain analysis Correlation Data acquisition distributed optical fiber sensor Energy transfer Error reduction Frequency modulation Optical fiber communication Optical fiber sensors Probes Scattering Spatial resolution stimulated Brillouin scattering |
| title | Precise Local Gain Extraction in a Phase-Modulated Correlation-Domain Brillouin Fiber Sensor |
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