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Proceedings Paper

Fast and distributed Brillouin time domain analysis of optical fibers
Author(s): Yair Peled; Avi Motil; Lior Yaron; Moshe Tur
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Paper Abstract

We present two recently developed new methods for fast and distributed strain/temperature sensing in optical fibers, based on Brillouin optical time domain analysis (BOTDA). Both methods make use of very fast (<1ns) and controlled tuning of the optical frequency of a light wave. In the Fast BOTDA (F-BOTDA) method the complete Brillouin gain spectrum is scanned, while in the Slope-Assisted technique (SA-BOTDA) only a single frequency point on the slope of the Brillouin gain spectrum is probed. A sensing speed of a few hundred Hz is experimentally demonstrated, limited only by the fiber length and the need for averaging.

Paper Details

Date Published: 17 October 2012
PDF: 7 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842113 (17 October 2012); doi: 10.1117/12.974976
Show Author Affiliations
Yair Peled, Tel-Aviv Univ. (Israel)
Avi Motil, Tel-Aviv Univ. (Israel)
Lior Yaron, Tel-Aviv Univ. (Israel)
Moshe Tur, Tel-Aviv Univ. (Israel)

Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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