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Proceedings Paper

Few millimeter-resolution Brillouin optical correlation domain analysis using amplified-spontaneous-emission pump and signal waves
Author(s): Raphael Cohen; Yosef London; Yair Antman; Avi Zadok
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Paper Abstract

A new technique for Brillouin optical correlation domain analysis is proposed and demonstrated, in which the pump and signal waves are drawn from the filtered amplified spontaneous emission of an erbium-doped fiber amplifier. An estimated spatial resolution of 3.3 mm is obtained using a 33 GHz-wide source. The reconstruction of the Brillouin gain line and the recognition of a localized hot spot are demonstrated in a proof-of-concept experiment. Unlike phase-coded correlation domain analysis methods, the proposed scheme is not restricted by the bandwidth of available electro-optic modulators or pattern generators. Resolution is scalable to less than one millimeter.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91576B (2 June 2014); doi: 10.1117/12.2059362
Show Author Affiliations
Raphael Cohen, Bar-Ilan Univ. (Israel)
Yosef London, Bar-Ilan Univ. (Israel)
Yair Antman, Bar-Ilan Univ. (Israel)
Avi Zadok, Bar-Ilan Univ. (Israel)


Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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