100km distributed temperature sensor based on coherent detection of spontaneous Brillouin backscatter
We report the longest sensing range of a distributed temperature change measurement along an optical sensing fibre with single-ended access. The technique is based on spontaneous Brillouin scattering and microwave heterodyne detection. The Brillouin frequency shift was used to obtain the distributed...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
2004.
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| Subjects: | |
| Online Access: | Get fulltext |