%0 Journal Article
%T An In-Reflection Strain Sensing Head Based on a Hi-Bi Photonic Crystal Fiber
%A Sergio Rota-Rodrigo
%A Ana M. R. Pinto
%A Mikel Bravo
%A Manuel Lopez-Amo
%J Sensors
%D 2013
%I MDPI AG
%R 10.3390/s130708095
%X A photonic crystal fiber-based sensing head is proposed for strain measurements. The sensor comprises a Hi-Bi PCF sensing head to measure interferometric signals in-reflection. An experimental background study of the sensing head is conducted through an optical backscatter reflectometer confirming the theoretical predictions, also included. A cost effective setup is proposed where a laser is used as illumination source, which allows accurate high precision strain measurements. Thus, a sensitivity of ~7.96 dB/me was achieved in a linear region of 1,200 ¦Ģe.
%K optical fiber sensor
%K photonic crystal fiber
%K strain sensor
%K interferometry
%U http://www.mdpi.com/1424-8220/13/7/8095