Title :
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
fDate :
6/1/2011 12:00:00 AM
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);
Journal_Title :
Lightwave Technology, Journal of
Conference_Location :
4/21/2011 12:00:00 AM
DOI :
10.1109/JLT.2011.2145411
