Dual-Probe Linearly Configured BOCDA System With Enlarged Modulation Amplitude
We introduce a linearly configured Brillouin optical correlation-domain analysis (LC-BOCDA) sensor that uses a dual-probe wave and control of the correlation order to enlarge the frequency modulation amplitude of the deployed optical signals. The system is able to compensate the signal distortions a...
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Published in | Journal of lightwave technology Vol. 36; no. 22; pp. 5203 - 5209 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
New York
IEEE
15.11.2018
The Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subjects | |
Online Access | Get full text |
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Summary: | We introduce a linearly configured Brillouin optical correlation-domain analysis (LC-BOCDA) sensor that uses a dual-probe wave and control of the correlation order to enlarge the frequency modulation amplitude of the deployed optical signals. The system is able to compensate the signal distortions and noise that impaired previous single-probe LC-BOCDA setups for frequency modulations larger than half the Brillouin frequency. These impairments are found to have originated in the Brillouin loss of the pump and in the beating of pump and probe spectral components at the receiver, both of which are avoided in this new sensor configuration. Applying our technique, we experimentally demonstrate an LC-BOCDA sensor, in which the frequency modulation amplitude can be increased to 9 GHz, leading to nearly twofold enhancement of the number of spatially resolved measurement points. |
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ISSN: | 0733-8724 1558-2213 |
DOI: | 10.1109/JLT.2018.2866552 |