Fast and distributed Brillouin time domain analysis of optical fibers

Yair Peled*, Avi Motil, Lior Yaron, Moshe Tur

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

We present two recently developed new methods for fast and distributed strain/temperature sensing in optical fibers, based on Brillouin optical time domain analysis (BOTDA). Both methods make use of very fast (<1ns) and controlled tuning of the optical frequency of a light wave. In the Fast BOTDA (F-BOTDA) method the complete Brillouin gain spectrum is scanned, while in the Slope-Assisted technique (SA-BOTDA) only a single frequency point on the slope of the Brillouin gain spectrum is probed. A sensing speed of a few hundred Hz is experimentally demonstrated, limited only by the fiber length and the need for averaging.

Original languageEnglish
Title of host publication22nd International Conference on Optical Fiber Sensors
DOIs
StatePublished - 2012
Event22nd International Conference on Optical Fiber Sensors - Beijing, China
Duration: 15 Oct 201219 Oct 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8421
ISSN (Print)0277-786X

Conference

Conference22nd International Conference on Optical Fiber Sensors
Country/TerritoryChina
CityBeijing
Period15/10/1219/10/12

Keywords

  • Brillouin scattering
  • Correlation
  • Distributed detection
  • Fiber optics sensors
  • Nonlinear optics

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