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Proceedings Paper

Transient Brillouin optical correlation domain analysis
Author(s): Eyal Preter; Dexin Ba; Orel Shlomi; Yosef London; Avi Zadok
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Paper Abstract

High spatial resolution measurement of the Brillouin frequency shift (BFS) is accomplished using transient analysis. The step response of the output signal wave is recorded for an arbitrary, known frequency offset between pump and signal, and compared against a library of modeled, reference functions. No spectral scanning or prior knowledge of the BFS is necessary. The principle is employed in a Brillouin optical correlation domain analysis (B-OCDA) of a 4 cm-wide fiber segment. A dynamic range of 130 MHz and an accuracy of ±1.9 MHz are achieved. Transient analysis may improve the precision and acquisition rate of B-OCDA.

Paper Details

Date Published: 23 April 2017
PDF: 4 pages
Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103236O (23 April 2017); doi: 10.1117/12.2263754
Show Author Affiliations
Eyal Preter, Bar-Ilan Univ. (Israel)
Dexin Ba, Bar-Ilan Univ. (Israel)
Harbin Institute of Technology (China)
Orel Shlomi, Bar-Ilan Univ. (Israel)
Yosef London, Bar-Ilan Univ. (Israel)
Avi Zadok, Bar-Ilan Univ. (Israel)

Published in SPIE Proceedings Vol. 10323:
25th International Conference on Optical Fiber Sensors
Youngjoo Chung; Wei Jin; Byoungho Lee; John Canning; Kentaro Nakamura; Libo Yuan, Editor(s)

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