Dual-laser Brillouin optical correlation-domain reflectometry
We develop a new configuration for Brillouin optical correlation-domain reflectometry (BOCDR), termed dual-laser BOCDR. This method enables distributed strain and temperature measurement by sweeping the relative phase between the frequency-modulated pump and reference laser outputs. During operation...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | JPhys Photonics |
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| Online Access: | https://doi.org/10.1088/2515-7647/adcddb |
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| author | Guangtao Zhu Takaki Kiyozumi Hiroshi Takahashi Yusuke Koshikiya Yosuke Mizuno |
| author_facet | Guangtao Zhu Takaki Kiyozumi Hiroshi Takahashi Yusuke Koshikiya Yosuke Mizuno |
| author_sort | Guangtao Zhu |
| collection | DOAJ |
| description | We develop a new configuration for Brillouin optical correlation-domain reflectometry (BOCDR), termed dual-laser BOCDR. This method enables distributed strain and temperature measurement by sweeping the relative phase between the frequency-modulated pump and reference laser outputs. During operation, we identify a unique 0 Hz Rayleigh noise caused by the interference between the Rayleigh scattered lights within a fiber under test (FUT). We demonstrate that this noise can be effectively suppressed by increasing the reference power while decreasing the Stokes power. Subsequently, we conduct distributed strain measurement along a 13 m-long FUT, observing Brillouin gain spectra at frequencies of as low as approximately 200 MHz. |
| format | Article |
| id | doaj-art-91f0e08983bb4f07be481a2468581f85 |
| institution | OA Journals |
| issn | 2515-7647 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | JPhys Photonics |
| spelling | doaj-art-91f0e08983bb4f07be481a2468581f852025-08-20T02:17:20ZengIOP PublishingJPhys Photonics2515-76472025-01-017202503010.1088/2515-7647/adcddbDual-laser Brillouin optical correlation-domain reflectometryGuangtao Zhu0https://orcid.org/0000-0001-8112-4395Takaki Kiyozumi1Hiroshi Takahashi2Yusuke Koshikiya3Yosuke Mizuno4https://orcid.org/0000-0002-3362-4720Faculty of Engineering, Yokohama National University , Yokohama 240-8501, JapanFaculty of Engineering, Yokohama National University , Yokohama 240-8501, Japan; Graduate School of Engineering, The University of Tokyo , Tokyo 113-8656, JapanFaculty of Engineering, Yokohama National University , Yokohama 240-8501, Japan; Access Network Service Systems Laboratories, NTT Corporation , Ibaraki 305-0805, JapanAccess Network Service Systems Laboratories, NTT Corporation , Ibaraki 305-0805, JapanFaculty of Engineering, Yokohama National University , Yokohama 240-8501, Japan; Institute for Multidisciplinary Sciences, Yokohama National University , Yokohama 240-8501, JapanWe develop a new configuration for Brillouin optical correlation-domain reflectometry (BOCDR), termed dual-laser BOCDR. This method enables distributed strain and temperature measurement by sweeping the relative phase between the frequency-modulated pump and reference laser outputs. During operation, we identify a unique 0 Hz Rayleigh noise caused by the interference between the Rayleigh scattered lights within a fiber under test (FUT). We demonstrate that this noise can be effectively suppressed by increasing the reference power while decreasing the Stokes power. Subsequently, we conduct distributed strain measurement along a 13 m-long FUT, observing Brillouin gain spectra at frequencies of as low as approximately 200 MHz.https://doi.org/10.1088/2515-7647/adcddbdistributed measurementBrillouin scatteringstrain sensing |
| spellingShingle | Guangtao Zhu Takaki Kiyozumi Hiroshi Takahashi Yusuke Koshikiya Yosuke Mizuno Dual-laser Brillouin optical correlation-domain reflectometry JPhys Photonics distributed measurement Brillouin scattering strain sensing |
| title | Dual-laser Brillouin optical correlation-domain reflectometry |
| title_full | Dual-laser Brillouin optical correlation-domain reflectometry |
| title_fullStr | Dual-laser Brillouin optical correlation-domain reflectometry |
| title_full_unstemmed | Dual-laser Brillouin optical correlation-domain reflectometry |
| title_short | Dual-laser Brillouin optical correlation-domain reflectometry |
| title_sort | dual laser brillouin optical correlation domain reflectometry |
| topic | distributed measurement Brillouin scattering strain sensing |
| url | https://doi.org/10.1088/2515-7647/adcddb |
| work_keys_str_mv | AT guangtaozhu duallaserbrillouinopticalcorrelationdomainreflectometry AT takakikiyozumi duallaserbrillouinopticalcorrelationdomainreflectometry AT hiroshitakahashi duallaserbrillouinopticalcorrelationdomainreflectometry AT yusukekoshikiya duallaserbrillouinopticalcorrelationdomainreflectometry AT yosukemizuno duallaserbrillouinopticalcorrelationdomainreflectometry |