Incoherent Brillouin Optical Time-Domain Reflectometry With Random State Correlated Brillouin Spectrum
An incoherent Brillouin optical time-domain reflectometry with random state correlated Brillouin spectrum is proposed and experimentally demonstrated for the first time, which is based on a newly developed broadband random light source (chaotic laser) with a bandwidth of four times of the Brillouin...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2015-01-01
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| Series: | IEEE Photonics Journal |
| Online Access: | https://ieeexplore.ieee.org/document/7156212/ |
| _version_ | 1819168945136992256 |
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| author | Zhe Ma Mingjiang Zhang Yi Liu Xiaoyi Bao Hui Liu Yongning Zhang Yuncai Wang |
| author_facet | Zhe Ma Mingjiang Zhang Yi Liu Xiaoyi Bao Hui Liu Yongning Zhang Yuncai Wang |
| author_sort | Zhe Ma |
| collection | DOAJ |
| description | An incoherent Brillouin optical time-domain reflectometry with random state correlated Brillouin spectrum is proposed and experimentally demonstrated for the first time, which is based on a newly developed broadband random light source (chaotic laser) with a bandwidth of four times of the Brillouin spectral width in fiber. A variable optical delay line is introduced to provide location distribution of the temperature or strain in the fiber to replace the optical pulse generator. By adjusting the reference light path, the correlation of the same random state of the Stokes light and the pump light will be measured in the form of the Brillouin spectrum. The spatial resolution is inversely proportional to the bandwidth of the chaotic laser, and hence, the pump wave and Stokes wave are correlated to each other by their identical random state. The experimental result shows a 0.96-m spatial resolution (limited by the bandwidth of the chaotic laser) over a 155-m sensing range. |
| first_indexed | 2024-12-22T19:11:40Z |
| format | Article |
| id | doaj.art-55ee120aa756420ea3ccc3b2ef166052 |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-22T19:11:40Z |
| publishDate | 2015-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-55ee120aa756420ea3ccc3b2ef1660522022-12-21T18:15:39ZengIEEEIEEE Photonics Journal1943-06552015-01-01741710.1109/JPHOT.2015.24527737156212Incoherent Brillouin Optical Time-Domain Reflectometry With Random State Correlated Brillouin SpectrumZhe Ma0Mingjiang Zhang1Yi Liu2Xiaoyi Bao3Hui Liu4Yongning Zhang5Yuncai Wang6Key Lab. of Adv. Transducers & Intell. Control Syst., Taiyuan Univ. of Technol., Taiyuan, ChinaKey Lab. of Adv. Transducers & Intell. Control Syst., Taiyuan Univ. of Technol., Taiyuan, ChinaKey Lab. of Adv. Transducers & Intell. Control Syst., Taiyuan Univ. of Technol., Taiyuan, ChinaDept. of Phys., Univ. of Ottawa, Ottawa, ON, CanadaKey Lab. of Adv. Transducers & Intell. Control Syst., Taiyuan Univ. of Technol., Taiyuan, ChinaKey Lab. of Adv. Transducers & Intell. Control Syst., Taiyuan Univ. of Technol., Taiyuan, ChinaKey Lab. of Adv. Transducers & Intell. Control Syst., Taiyuan Univ. of Technol., Taiyuan, ChinaAn incoherent Brillouin optical time-domain reflectometry with random state correlated Brillouin spectrum is proposed and experimentally demonstrated for the first time, which is based on a newly developed broadband random light source (chaotic laser) with a bandwidth of four times of the Brillouin spectral width in fiber. A variable optical delay line is introduced to provide location distribution of the temperature or strain in the fiber to replace the optical pulse generator. By adjusting the reference light path, the correlation of the same random state of the Stokes light and the pump light will be measured in the form of the Brillouin spectrum. The spatial resolution is inversely proportional to the bandwidth of the chaotic laser, and hence, the pump wave and Stokes wave are correlated to each other by their identical random state. The experimental result shows a 0.96-m spatial resolution (limited by the bandwidth of the chaotic laser) over a 155-m sensing range.https://ieeexplore.ieee.org/document/7156212/ |
| spellingShingle | Zhe Ma Mingjiang Zhang Yi Liu Xiaoyi Bao Hui Liu Yongning Zhang Yuncai Wang Incoherent Brillouin Optical Time-Domain Reflectometry With Random State Correlated Brillouin Spectrum IEEE Photonics Journal |
| title | Incoherent Brillouin Optical Time-Domain Reflectometry With Random State Correlated Brillouin Spectrum |
| title_full | Incoherent Brillouin Optical Time-Domain Reflectometry With Random State Correlated Brillouin Spectrum |
| title_fullStr | Incoherent Brillouin Optical Time-Domain Reflectometry With Random State Correlated Brillouin Spectrum |
| title_full_unstemmed | Incoherent Brillouin Optical Time-Domain Reflectometry With Random State Correlated Brillouin Spectrum |
| title_short | Incoherent Brillouin Optical Time-Domain Reflectometry With Random State Correlated Brillouin Spectrum |
| title_sort | incoherent brillouin optical time domain reflectometry with random state correlated brillouin spectrum |
| url | https://ieeexplore.ieee.org/document/7156212/ |
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