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Brillouin optical correlation domain analysis with over 2.5 million resolution points based on Raman amplification and injection locking
- Issue Date
- Jan-2023
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Keywords
- Brillouin optical correlation domain analysis (BOCDA); Distributed fiber optic sensor; Modulation; Optical fiber sensors; Raman amplification; Scattering; Sensors; Spatial resolution; Stimulated Brillouin scattering (SBS); Stimulated emission; Time-domain analysis
- Citation
- Journal of Lightwave Technology, v.41, no.1, pp 1 - 7
- Pages
- 7
- Journal Title
- Journal of Lightwave Technology
- Volume
- 41
- Number
- 1
- Start Page
- 1
- End Page
- 7
- ISSN
- 0733-8724
1558-2213
- Abstract
- We propose and experimentally demonstrate a long-range Brillouin optical correlation domain analysis (BOCDA) system based on distributed Raman amplification and injection-locking to reach over 2.6 million resolving points. The optimization of key parameters in the Raman amplification, time domain data processing, differential measurement scheme, and injection-locking are applied to achieve a spatial resolution of 2 cm over a 50 km sensing fiber. Our result corresponds to at least twice improvement compared to former records, and the best one among distributed Brillouin sensors in terms of the number of resolving points. IEEE
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Collections - College of Natural Sciences > Department of Physics > 1. Journal Articles
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