Single-ended distributed temperature or strain sensor based on stimulated Brillouin scattering

DOI

Search this article

Description

We propose a single-ended distributed temperature or strain sensor based on stimulated Brillouin scattering (SBS) in a polarization-maintaining (PM) optical fiber. Pump and probe waves with orthogonal polarization states enter one fiber end and generate SBS assisted by a polarization beam splitter and a PM isolator at the other fiber end. Unlike the previously-reported method, neither an optical filter nor a sophisticated beat-lock-in detection is necessary. Single-ended distributed sensing of temperature or strain is experimentally demonstrated with the measurement range and the spatial resolution of 200 m/16 cm, 56 m/5 cm, or 5.6 m/5 mm, respectively.

Journal

Details 詳細情報について

Report a problem

Back to top