Fiber sensor utilizes both Raman and Brillouin scattering

Abstract

Fiber sensors are replacing traditional transducers in myriad monitoring and measuring applications, a result of the fiber sensor's superior reliability, longevity, and flexibility to function in multiple sensing applications. In one example, fiber sensors have measured both strain and temperature when the fiber is illuminated with laser light, and the signal reflected back by Brillouin scattering is quantified. Such simultaneous measurement could be useful, for example, in real-time monitoring of the strain and temperature in a critical engine part.

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