Coherent BOTDA Sensor With Single-Sideband Modulated Probe Light
In order to optimize the coherent Brillouin optical time domain analysis (BOTDA) sensor for more effective chromatic dispersion (CD) suppression, single-sideband intensity-modulated probe (IMP) light is utilized. Obvious Brillouin gain spectrum distortion due to CD observed in the double-sideband IM...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2016-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/7384678/ |
| _version_ | 1828967907083681792 |
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| author | Zonglei Li Lianshan Yan Liyang Shao Wei Pan Bin Luo Jiawei Liang Haijun He |
| author_facet | Zonglei Li Lianshan Yan Liyang Shao Wei Pan Bin Luo Jiawei Liang Haijun He |
| author_sort | Zonglei Li |
| collection | DOAJ |
| description | In order to optimize the coherent Brillouin optical time domain analysis (BOTDA) sensor for more effective chromatic dispersion (CD) suppression, single-sideband intensity-modulated probe (IMP) light is utilized. Obvious Brillouin gain spectrum distortion due to CD observed in the double-sideband IMP case is successfully cancelled. Meanwhile, frequency preshift for local light generation in other coherent BOTDA sensors that have been reported recently can be avoided in our scheme, resulting in a reduction in system complexity. On the other hand, a logarithmic detector, instead of an inphase/quadrature demodulator, is applied to reduce half of the measurement time. A ~2-m spatial resolution and 0.97 °C temperature accuracy at the end of a 40-km sensing fiber are realized by using a 100-ns/80-ns differential pulsewidth pair. |
| first_indexed | 2024-12-14T11:59:49Z |
| format | Article |
| id | doaj.art-9e7214c0e87641869e7ddef18165fa56 |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-14T11:59:49Z |
| publishDate | 2016-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-9e7214c0e87641869e7ddef18165fa562022-12-21T23:02:01ZengIEEEIEEE Photonics Journal1943-06552016-01-01811810.1109/JPHOT.2016.25188667384678Coherent BOTDA Sensor With Single-Sideband Modulated Probe LightZonglei Li0Lianshan Yan1Liyang Shao2Wei Pan3Bin Luo4Jiawei Liang5Haijun He6Center for Inf. Photonics & Commun., Southwest Jiaotong Univ., Chengdu, ChinaCenter for Inf. Photonics & Commun., Southwest Jiaotong Univ., Chengdu, ChinaCenter for Inf. Photonics & Commun., Southwest Jiaotong Univ., Chengdu, ChinaCenter for Inf. Photonics & Commun., Southwest Jiaotong Univ., Chengdu, ChinaCenter for Inf. Photonics & Commun., Southwest Jiaotong Univ., Chengdu, ChinaCenter for Inf. Photonics & Commun., Southwest Jiaotong Univ., Chengdu, ChinaCenter for Inf. Photonics & Commun., Southwest Jiaotong Univ., Chengdu, ChinaIn order to optimize the coherent Brillouin optical time domain analysis (BOTDA) sensor for more effective chromatic dispersion (CD) suppression, single-sideband intensity-modulated probe (IMP) light is utilized. Obvious Brillouin gain spectrum distortion due to CD observed in the double-sideband IMP case is successfully cancelled. Meanwhile, frequency preshift for local light generation in other coherent BOTDA sensors that have been reported recently can be avoided in our scheme, resulting in a reduction in system complexity. On the other hand, a logarithmic detector, instead of an inphase/quadrature demodulator, is applied to reduce half of the measurement time. A ~2-m spatial resolution and 0.97 °C temperature accuracy at the end of a 40-km sensing fiber are realized by using a 100-ns/80-ns differential pulsewidth pair.https://ieeexplore.ieee.org/document/7384678/Coherent BOTDAdistributed fiber sensingdouble-sideband modulationsingle-sideband modulationchromatic dispersion |
| spellingShingle | Zonglei Li Lianshan Yan Liyang Shao Wei Pan Bin Luo Jiawei Liang Haijun He Coherent BOTDA Sensor With Single-Sideband Modulated Probe Light IEEE Photonics Journal Coherent BOTDA distributed fiber sensing double-sideband modulation single-sideband modulation chromatic dispersion |
| title | Coherent BOTDA Sensor With Single-Sideband Modulated Probe Light |
| title_full | Coherent BOTDA Sensor With Single-Sideband Modulated Probe Light |
| title_fullStr | Coherent BOTDA Sensor With Single-Sideband Modulated Probe Light |
| title_full_unstemmed | Coherent BOTDA Sensor With Single-Sideband Modulated Probe Light |
| title_short | Coherent BOTDA Sensor With Single-Sideband Modulated Probe Light |
| title_sort | coherent botda sensor with single sideband modulated probe light |
| topic | Coherent BOTDA distributed fiber sensing double-sideband modulation single-sideband modulation chromatic dispersion |
| url | https://ieeexplore.ieee.org/document/7384678/ |
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