The effectiveness of metal coating on FBG sensor sensitivity at cryogenic temperature

C. Lupi; F. Felli; M. A. Caponero; A. Paolozzi

doi:10.1117/12.738383

2 July 2007 The effectiveness of metal coating on FBG sensor sensitivity at cryogenic temperature

C. Lupi, F. Felli, M. A. Caponero, A. Paolozzi

Proceedings Volume 6619, Third European Workshop on Optical Fibre Sensors; 661916 (2007) https://doi.org/10.1117/12.738383
Event: Third European Workshop on Optical Fibre Sensors, 2007, Napoli, Italy

Abstract

The very low thermal expansion coefficient of silica at cryogenic temperature prevents the use of Fibre Bragg Grating (FBG) sensors for high resolution temperature monitoring in cryogenic environments involving liquid gases or space applications. To overcome such limitations sensors have been coated with different metals to improve the measurement sensitivity in the very low temperature region, i.e. 4.2-35 K. Various coatings have been deposited by electrowinning on the external fibre surface after aluminium pre-coating. Full characterization of this new type of sensor is described in the paper.

Citation Download Citation

C. Lupi, F. Felli, M. A. Caponero, and A. Paolozzi "The effectiveness of metal coating on FBG sensor sensitivity at cryogenic temperature", Proc. SPIE 6619, Third European Workshop on Optical Fibre Sensors, 661916 (2 July 2007); https://doi.org/10.1117/12.738383

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available