Fiber-Bragg-grating (FBG)-based optical sensors are typically used to measure distributed stress, strain, and temperature over a wide area. But a different type of FBG-based sensor from Optics11 (Amsterdam, Netherlands) has 1000X more sensitivity than standard FBG sensors, and is around 100X faster compared to Rayleigh-scattering technology.

Read more at http://www.laserfocusworld.com/articles/print/volume-53/issue-08/newsbreaks/fbg-based-interferometer-senses-the-tiniest-of-acoustic-signals.html

Author: AOLab
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