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Proceedings Paper

Frequency domain simultaneous tone interrogation for faster, sweep-free Brillouin distributed sensing
Author(s): Asher Voskoboinik; Jian Wang; Alan E. Willner; Moshe Tur
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Paper Abstract

We propose a frequency-sweep-free method for a SBS sensor, where the Brillouin shift is determined without the need of sweeping the frequency of any of the optical waves. This is implemented by generating simultaneous frequency tones in both probe and pump channels and by properly arranging their frequency values. The closest tone to the Brillouin shift receives the most amplification, and thus the Brillouin gain frequency center can be obtained from a single measurement. We experimentally demonstrate the feasibility with CW probes and pumps. The extension to a fast sweep-free Brillouin optical time domain sensing is performed through detailed simulations.

Paper Details

Date Published: 17 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77533G (17 May 2011); doi: 10.1117/12.885171
Show Author Affiliations
Asher Voskoboinik, The Univ. of Southern California (United States)
Jian Wang, The Univ. of Southern California (United States)
Alan E. Willner, The Univ. of Southern California (United States)
Moshe Tur, Tel Aviv Univ. (Israel)

Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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