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Optics Letters

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  • Vol. 36, Iss. 2 — Jan. 15, 2011
  • pp: 277–279

Time-division multiplexing-based BOTDA over 100 km sensing length

Yongkang Dong, Liang Chen, and Xiaoyi Bao  »View Author Affiliations


Optics Letters, Vol. 36, Issue 2, pp. 277-279 (2011)
http://dx.doi.org/10.1364/OL.36.000277


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Abstract

We propose and demonstrate a high-performance and long-range Brillouin optical time-domain analysis (BOTDA) based on time-division multiplexing measurement, where a probe pulse and a pump pulse are used to perform the measurement on a selected sensing section, and the measurement of the entire sensing fiber is realized by combining the series measurements over different sections through changing the delay time between the two pulses. In experiment, a 100 km sensing fiber is divided into 11 sections based on the gain-controlled principle, and spatial resolutions of 0.6 m and 2 m are obtained at the end of 75 km and 100 km , respectively.

© 2011 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(290.5900) Scattering : Scattering, stimulated Brillouin

ToC Category:
Nonlinear Localization and Filamentation Effects

History
Original Manuscript: September 8, 2010
Revised Manuscript: December 7, 2010
Manuscript Accepted: December 15, 2010
Published: January 13, 2011

Citation
Yongkang Dong, Liang Chen, and Xiaoyi Bao, "Time-division multiplexing-based BOTDA over 100km sensing length," Opt. Lett. 36, 277-279 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-2-277


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