We propose and experimentally demonstrate a method for extension of measurement range in a Brillouin optical correlation domain analysis sensor system without resolution deterioration. In the experiment, a 300 m measurement range with about 8 cm spatial resolution was successfully obtained by cascading three different kinds of fibers as a sensing element.
© 2012 Optical Society of Korea
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.4080) Fiber optics and optical communications : Modulation
(120.5820) Instrumentation, measurement, and metrology : Scattering measurements
(290.5900) Scattering : Scattering, stimulated Brillouin
Original Manuscript: July 13, 2012
Revised Manuscript: August 14, 2012
Manuscript Accepted: August 14, 2012
Published: September 25, 2012
Ji-Ho Jeong, Kwan-Il Lee, Je-Myung Jeong, and Sang-Bae Lee, "Measurement Range Enlargement in Brillouin Optical Correlation Domain Analysis Using Multiple Correlation Peaks," J. Opt. Soc. Korea 16, 210-214 (2012)
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