2009•Unpublished venueRequires access

Realization of High-Speed Distributed Sensing Based on Brillouin Optical Correlation Domain Analysis

Weiwen Zou, Zuyuan He, Kazuo Hotate

Abstract

A novel method is proposed to demodulate the output of Brillouin optical correlation domain analysis by using an analog signal processing unit free from the update rate limitation of the conventional method. The distributed Brillouin interaction per pump-probe frequency offset is continuously recorded during linearly sweeping the sensing positions. In experiment, we realize ~20-Hz distributed sensing over the entire 50-m fiber with 5-cm spatial resolution.

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Available abstract

Key concepts: Brillouin zone, Demodulation, Domain analysis, Offset (computer science), Brillouin scattering, Distributed acoustic sensing, Computer science, Optical correlation