Brillouin time-domain and correlation-domain analyses combined

Yair Antman; David Elooz; Raphael Cohen; Yosef London; Avi Zadok

doi:10.1109/icsens.2014.6984957

Brillouin time-domain and correlation-domain analyses combined

Yair Antman
, David Elooz
, Raphael Cohen
, Yosef London
, Avi Zadok

Bar-Ilan University - The Alexander Kofkin Faculty of Engineering

Bar-Ilan University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

A distributed fiber sensor for temperature and strain with an increased number of high-resolution points and a reduced acquisition time is presented, using a combination of Brillouin optical time domain analysis (B-OTDA) and Brillouin optical correlation domain analysis (B-OCDA) techniques. Both Brillouin pump and signal waves are co-modulated by a high-rate binary phase sequence, which restricts the Brillouin interaction to a discrete set of narrow correlation peaks according to the BOCDA principle. In addition, amplitude pulse modulation is overlaid on the pump wave. With careful choice of the pump pulse duration, the SBS amplification taking place at multiple correlation peaks can be temporally resolved in measurements of the output signal power, much like in a B-OTDA. Using the proposed method, Brillouin gain spectra are acquired over a 4 km-long fiber with 2 cm resolution. 99.5% of the potential 200,000 resolution points are successfully mapped, using only 499 spatial scans of the correlation peaks positions.

Original language	English
Title of host publication	IEEE SENSORS 2014, Proceedings
Editors	Francisco J. Arregui
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	158-161
Number of pages	4
Edition	December
ISBN (Electronic)	9781479901616
DOIs	https://doi.org/10.1109/icsens.2014.6984957
State	Published - 12 Dec 2014
Event	13th IEEE SENSORS Conference, SENSORS 2014 - Valencia, Spain Duration: 2 Nov 2014 → 5 Nov 2014

Publication series

Name	Proceedings of IEEE Sensors
Number	December
Volume	2014-December
ISSN (Print)	1930-0395
ISSN (Electronic)	2168-9229

Conference

Conference	13th IEEE SENSORS Conference, SENSORS 2014
Country/Territory	Spain
City	Valencia
Period	2/11/14 → 5/11/14

Bibliographical note

Publisher Copyright:
© 2014 IEEE.

Keywords

All-optical signal processing
Brillouin analysis
Distributed sensors
Fiber-optic sensors
Pulse compression

Access to Document

10.1109/icsens.2014.6984957

Cite this

Antman, Y., Elooz, D., Cohen, R., London, Y., & Zadok, A. (2014). Brillouin time-domain and correlation-domain analyses combined. In F. J. Arregui (Ed.), IEEE SENSORS 2014, Proceedings (December ed., pp. 158-161). Article 6984957 (Proceedings of IEEE Sensors; Vol. 2014-December, No. December). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/icsens.2014.6984957

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title = "Brillouin time-domain and correlation-domain analyses combined",

abstract = "A distributed fiber sensor for temperature and strain with an increased number of high-resolution points and a reduced acquisition time is presented, using a combination of Brillouin optical time domain analysis (B-OTDA) and Brillouin optical correlation domain analysis (B-OCDA) techniques. Both Brillouin pump and signal waves are co-modulated by a high-rate binary phase sequence, which restricts the Brillouin interaction to a discrete set of narrow correlation peaks according to the BOCDA principle. In addition, amplitude pulse modulation is overlaid on the pump wave. With careful choice of the pump pulse duration, the SBS amplification taking place at multiple correlation peaks can be temporally resolved in measurements of the output signal power, much like in a B-OTDA. Using the proposed method, Brillouin gain spectra are acquired over a 4 km-long fiber with 2 cm resolution. 99.5\% of the potential 200,000 resolution points are successfully mapped, using only 499 spatial scans of the correlation peaks positions.",

keywords = "All-optical signal processing, Brillouin analysis, Distributed sensors, Fiber-optic sensors, Pulse compression",

author = "Yair Antman and David Elooz and Raphael Cohen and Yosef London and Avi Zadok",

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Antman, Y, Elooz, D, Cohen, R, London, Y & Zadok, A 2014, Brillouin time-domain and correlation-domain analyses combined. in FJ Arregui (ed.), IEEE SENSORS 2014, Proceedings. December edn, 6984957, Proceedings of IEEE Sensors, no. December, vol. 2014-December, Institute of Electrical and Electronics Engineers Inc., pp. 158-161, 13th IEEE SENSORS Conference, SENSORS 2014, Valencia, Spain, 2/11/14. https://doi.org/10.1109/icsens.2014.6984957

Brillouin time-domain and correlation-domain analyses combined. / Antman, Yair; Elooz, David; Cohen, Raphael et al.
IEEE SENSORS 2014, Proceedings. ed. / Francisco J. Arregui. December. ed. Institute of Electrical and Electronics Engineers Inc., 2014. p. 158-161 6984957 (Proceedings of IEEE Sensors; Vol. 2014-December, No. December).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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PY - 2014/12/12

Y1 - 2014/12/12

N2 - A distributed fiber sensor for temperature and strain with an increased number of high-resolution points and a reduced acquisition time is presented, using a combination of Brillouin optical time domain analysis (B-OTDA) and Brillouin optical correlation domain analysis (B-OCDA) techniques. Both Brillouin pump and signal waves are co-modulated by a high-rate binary phase sequence, which restricts the Brillouin interaction to a discrete set of narrow correlation peaks according to the BOCDA principle. In addition, amplitude pulse modulation is overlaid on the pump wave. With careful choice of the pump pulse duration, the SBS amplification taking place at multiple correlation peaks can be temporally resolved in measurements of the output signal power, much like in a B-OTDA. Using the proposed method, Brillouin gain spectra are acquired over a 4 km-long fiber with 2 cm resolution. 99.5% of the potential 200,000 resolution points are successfully mapped, using only 499 spatial scans of the correlation peaks positions.

AB - A distributed fiber sensor for temperature and strain with an increased number of high-resolution points and a reduced acquisition time is presented, using a combination of Brillouin optical time domain analysis (B-OTDA) and Brillouin optical correlation domain analysis (B-OCDA) techniques. Both Brillouin pump and signal waves are co-modulated by a high-rate binary phase sequence, which restricts the Brillouin interaction to a discrete set of narrow correlation peaks according to the BOCDA principle. In addition, amplitude pulse modulation is overlaid on the pump wave. With careful choice of the pump pulse duration, the SBS amplification taking place at multiple correlation peaks can be temporally resolved in measurements of the output signal power, much like in a B-OTDA. Using the proposed method, Brillouin gain spectra are acquired over a 4 km-long fiber with 2 cm resolution. 99.5% of the potential 200,000 resolution points are successfully mapped, using only 499 spatial scans of the correlation peaks positions.

KW - All-optical signal processing

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ER -

Brillouin time-domain and correlation-domain analyses combined

Abstract

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Bibliographical note

Keywords

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