Time-Domain Distributed Fiber Sensor With 1 cm Spatial Resolution Based on Brillouin Dynamic Grating
- Authors
- Song, Kwang Yong; Chin, Sanghoon; Primerov, Nikolay; Thevenaz, Luc
- Issue Date
- Jul-2010
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Brillouin scattering; gratings; optical fibers; optical fiber measurements
- Citation
- JOURNAL OF LIGHTWAVE TECHNOLOGY, v.28, no.14, pp 2062 - 2067
- Pages
- 6
- Journal Title
- JOURNAL OF LIGHTWAVE TECHNOLOGY
- Volume
- 28
- Number
- 14
- Start Page
- 2062
- End Page
- 2067
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/52308
- DOI
- 10.1109/JLT.2010.2050763
- ISSN
- 0733-8724
1558-2213
- Abstract
- We demonstrate an optical time-domain distributed fiber sensor showing the highest spatial resolution ever reported based on Brillouin dynamic grating in a polarization-maintaining fiber. In our scheme, the acoustic gratings containing the information on the local Brillouin frequency are generated by a long pump pulse in one polarization, and read out by a short probe pulse in the orthogonal polarization at a clearly distinct optical frequency from the pump. In the experiment, distributed temperature measurements over a 20 m fiber are performed with 1.2 cm spatial resolution.
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Collections - College of Natural Sciences > Department of Physics > 1. Journal Articles
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