SBS-Based Fiber Optical Sensing Using Frequency-Domain Simultaneous Tone Interrogation

Author

Voskoboinik, Asher ; Wang, Jian ; Shamee, Bishara ; Nuccio, Scott R. ; Zhang, Lin ; Chitgarha, Mohammadreza ; Willner, Alan E. ; Tur, Moshe

Author_Institution

Dept. of Electr. Eng.-Syst., Univ. of Southern California, Los Angeles, CA, USA

Volume

29

Issue

11

fYear

2011

fDate

6/1/2011 12:00:00 AM

Firstpage

1729

Lastpage

1735

Abstract

A frequency-sweep-free method for stimulated Brillouin scattering (SBS)-based sensing is proposed, having the potential for fast acquisition characteristics. The Brillouin gain spectrum and the Brillouin frequency shift are determined using multiple frequency tones for both the probe and pump. While in this paper, continuous wave probe and pump waves are used to prove the feasibility of the concept, an extension to fast distributed sensing, using pulsed pumps, is also described.

Keywords

distributed sensors; fibre optic sensors; optical fibre amplifiers; optical pumping; stimulated Brillouin scattering; Brillouin frequency shift; Brillouin gain spectrum; continuous wave probe; fast distributed sensing; fiber optical sensing; frequency sweep free method; frequency-domain simultaneous tone interrogation; multiple frequency tones; pump waves; stimulated Brillouin scattering; Optical fiber sensors; Optical fibers; Optical pumping; Probes; Scattering; Brillouin gain spectrum (BGS); Brillouin sensors; frequency-domain multiplexing (FDM); optical fiber sensors; stimulated Brillouin scattering (SBS);

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

Conference_Location

4/21/2011 12:00:00 AM

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2011.2145411

Filename

5753904