Improving the sensitivity of an interferometric fiber optic sensor for acoustic detection in rockfalls
Proceedings article published in 2014 by
Luca Palmieri,
Luca Palmieri L. Autizi E. Galtarossa A. Pasuto A. Schenato 
,
Elena Autizi,
Andrea Galtarossa,
Alessandro Pasuto
,
Elena Autizi,
Andrea Galtarossa,
Alessandro Pasuto
Abstract
Optimization of an interferometric fiber optic sensor for ultrasonic acoustic detection in rockfall monitoring is addressed. The optimized sensor employs a polyimide coated fiber and improved design with an almost doubled acoustic sensitivity.