Spectral scanning-free measurement of Brillouin frequency shift using transient analysis

Eyal Preter; Orel Shlomi; Yosef London; Yair Antman; Avi Zadok

doi:10.1117/12.2236802

Spectral scanning-free measurement of Brillouin frequency shift using transient analysis

Eyal Preter, Orel Shlomi, Yosef London, Yair Antman, Avi Zadok

Bar-Ilan University - The Alexander Kofkin Faculty of Engineering

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

2 Scopus citations

Abstract

The scanning-free, precise reconstruction of the local value of the Brillouin frequency shift in a section of optical fiber is proposed and demonstrated experimentally. The Brillouin shift is identified based on transient analysis of the step response of the amplified signal wave. The measurement protocol requires a single trace, taken at an arbitrary frequency offset between the central optical frequencies of the pump and signal waves. The frequency offset may be chosen anywhere within ±100 MHz of the Brillouin frequency shift, corresponding to a measurement range of ±100 °C or ±2,000 μϵ. The experimental error between the estimated Brillouin shift and its true value is less than±1 MHz. The protocol is suitable to high-resolution Brillouin optical correlation domain analysis.

Original language	English
Title of host publication	Sixth European Workshop on Optical Fibre Sensors
Editors	Elfed Lewis
Publisher	SPIE
ISBN (Electronic)	9781510602199
DOIs	https://doi.org/10.1117/12.2236802
State	Published - 2016
Event	6th European Workshop on Optical Fibre Sensors - Limerick, Ireland Duration: 31 May 2016 → 3 Jun 2016

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	9916
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	6th European Workshop on Optical Fibre Sensors
Country/Territory	Ireland
City	Limerick
Period	31/05/16 → 3/06/16

Bibliographical note

Publisher Copyright:
© 2016 SPIE.

Keywords

Distributed Brillouin analysis
Fiber-optics sensors
Nonlinear optics
Stimulated Brillouin scattering

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10.1117/12.2236802

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title = "Spectral scanning-free measurement of Brillouin frequency shift using transient analysis",

abstract = "The scanning-free, precise reconstruction of the local value of the Brillouin frequency shift in a section of optical fiber is proposed and demonstrated experimentally. The Brillouin shift is identified based on transient analysis of the step response of the amplified signal wave. The measurement protocol requires a single trace, taken at an arbitrary frequency offset between the central optical frequencies of the pump and signal waves. The frequency offset may be chosen anywhere within ±100 MHz of the Brillouin frequency shift, corresponding to a measurement range of ±100 °C or ±2,000 μϵ. The experimental error between the estimated Brillouin shift and its true value is less than±1 MHz. The protocol is suitable to high-resolution Brillouin optical correlation domain analysis.",

keywords = "Distributed Brillouin analysis, Fiber-optics sensors, Nonlinear optics, Stimulated Brillouin scattering",

author = "Eyal Preter and Orel Shlomi and Yosef London and Yair Antman and Avi Zadok",

note = "Publisher Copyright: {\textcopyright} 2016 SPIE.; 6th European Workshop on Optical Fibre Sensors ; Conference date: 31-05-2016 Through 03-06-2016",

year = "2016",

doi = "10.1117/12.2236802",

language = "אנגלית",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

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Preter, E, Shlomi, O, London, Y, Antman, Y & Zadok, A 2016, Spectral scanning-free measurement of Brillouin frequency shift using transient analysis. in E Lewis (ed.), Sixth European Workshop on Optical Fibre Sensors., 99162K, Proceedings of SPIE - The International Society for Optical Engineering, vol. 9916, SPIE, 6th European Workshop on Optical Fibre Sensors, Limerick, Ireland, 31/05/16. https://doi.org/10.1117/12.2236802

Spectral scanning-free measurement of Brillouin frequency shift using transient analysis. / Preter, Eyal; Shlomi, Orel; London, Yosef et al.
Sixth European Workshop on Optical Fibre Sensors. ed. / Elfed Lewis. SPIE, 2016. 99162K (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9916).

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

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AB - The scanning-free, precise reconstruction of the local value of the Brillouin frequency shift in a section of optical fiber is proposed and demonstrated experimentally. The Brillouin shift is identified based on transient analysis of the step response of the amplified signal wave. The measurement protocol requires a single trace, taken at an arbitrary frequency offset between the central optical frequencies of the pump and signal waves. The frequency offset may be chosen anywhere within ±100 MHz of the Brillouin frequency shift, corresponding to a measurement range of ±100 °C or ±2,000 μϵ. The experimental error between the estimated Brillouin shift and its true value is less than±1 MHz. The protocol is suitable to high-resolution Brillouin optical correlation domain analysis.

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Spectral scanning-free measurement of Brillouin frequency shift using transient analysis

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