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Proceedings Paper

Flow cell with hybrid LPG and FBG optical fibre sensor for refractometric measurements
Author(s): F. Baldini; M. Brenci; F. Chiavaioli; R. Falciai; C. Trono
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Paper Abstract

The combination of a long period grating and a fiber Bragg grating written on the same fiber is described as method to reduce noticeably the interferences caused by strain and temperature in the measurement of refractive index. The hybrid LPG and FBG optical fiber sensor is manufactured and located in a small volume flow cell. The whole system with its flow cell and the gratings fabrication are extensively described as well as both the acquisition and data processing. The maximum sensor sensitivity and resolution are about 3120 nm/RIU and 2 x 10-5 RIU, respectively.

Paper Details

Date Published: 18 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 775392 (18 May 2011); doi: 10.1117/12.885126
Show Author Affiliations
F. Baldini, Istituto di Fisica Applicata Nello Carrara, CNR (Italy)
M. Brenci, Istituto di Fisica Applicata Nello Carrara, CNR (Italy)
F. Chiavaioli, Univ. degli Studi di Siena (Italy)
R. Falciai, Istituto di Fisica Applicata Nello Carrara, CNR (Italy)
C. Trono, Istituto di Fisica Applicata Nello Carrara, CNR (Italy)


Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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