Title :
Force measurement using induced birefringence on Bragg gratings
Author :
Kawase, L.R. ; Valente, Luiz C G ; Margulis, Walter ; Carvalho, Ma Cristina R
Author_Institution :
Dept. de Telecomunicacoes, Univ. Fed. Fluminense, Niteroi, Brazil
Abstract :
We experimentally demonstrate the use of Bragg grating reflectors in an intrinsic all fiber polarimetric force sensor. Lateral force applied to the fiber induces a proportional birefringence. If the region in the fiber where the force is applied contains a Bragg grating, it will exhibit two reflection peaks associated with orthogonal polarization modes. The measured force sensitivity was of 7.2×10 -2 nm/kg for this specific set-up and a very low temperature dependence is expected
Keywords :
birefringence; diffraction gratings; fibre optic sensors; force measurement; optical fibre polarisation; Bragg grating reflectors; fiber polarimetric force sensor; force measurement; induced birefringence; lateral force; orthogonal polarization modes; Birefringence; Bragg gratings; Force measurement; Force sensors; Optical fiber polarization; Optical fiber sensors; Optical filters; Optical reflection; Optical refraction; Optical sensors;
Conference_Titel :
Microwave and Optoelectronics Conference, 1997. Linking to the Next Century. Proceedings., 1997 SBMO/IEEE MTT-S International
Conference_Location :
Natal
Print_ISBN :
0-7803-4165-1
DOI :
10.1109/SBMOMO.1997.646902
