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Proceedings Paper

Lead coating to improve fiber Bragg grating sensitivity at cryogenic temperatures
Author(s): C. Lupi; F. Felli; L. Ippoliti; M. Arturo Caponero D.D.S.; F. Fabbri; A. Paolozzi
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Paper Abstract

Fibre Bragg Grating (FBG) sensors, can be used for temperature monitoring but the low thermal expansion coefficient of silica limits its sensitivity in cryogenic environment. However it will be shown that the use of a lead coating, electrodeposited on an aluminum pre-coated senosr, will enhance FBG sensing properties down to 5 K. Slight variations on the optical response of the coated FBG sensor are interpreted with the micrographic observation of the deposit.

Paper Details

Date Published: 23 May 2005
PDF: 5 pages
Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); doi: 10.1117/12.624224
Show Author Affiliations
C. Lupi, Univ. di Roma La Sapienza (Italy)
F. Felli, Univ. di Roma La Sapienza (Italy)
L. Ippoliti, Univ. di Roma La Sapienza (Italy)
M. Arturo Caponero D.D.S., ENEA (Italy)
F. Fabbri, ENEA (Italy)
A. Paolozzi, Univ. di Roma La Sapienza (Italy)

Published in SPIE Proceedings Vol. 5855:
17th International Conference on Optical Fibre Sensors
Marc Voet; Reinhardt Willsch; Wolfgang Ecke; Julian Jones; Brian Culshaw, Editor(s)

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