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Distributed fiber strain sensor with 1-kHz sampling rate based on Brillouin optical correlation domain analysis
- Authors
- Song, Kwang Yong; Hotate, Kazuo
- Issue Date
- Nov-2007
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Brillouin scattering; correlation; distributed detection; modulation; nonlinear optics; optical fiber measurements
- Citation
- IEEE PHOTONICS TECHNOLOGY LETTERS, v.19, no.21-24, pp 1928 - 1930
- Pages
- 3
- Journal Title
- IEEE PHOTONICS TECHNOLOGY LETTERS
- Volume
- 19
- Number
- 21-24
- Start Page
- 1928
- End Page
- 1930
- ISSN
- 1041-1135
- Abstract
- We report the highest speed distributed sensing of dynamic strain based on stimulated Brillouin scattering in optical fibers. A sampling rate of 1 kHz, more than an order of magnitude higher than the former best result, is achieved by applying a simplified Brillouin optical correlation domain analysis with optimized time gates and an unbalanced Mach-Zehnder delay line. In experiments, we present the measurement of various dynamic strains at the maximum frequency of 200 Hz with 10-cm spatial resolution and 20-m measurement range.
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Collections - College of Natural Sciences > Department of Physics > 1. Journal Articles
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