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

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

Research output: Contribution to conferencePaper

5 Citations (Scopus)

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.
Original languageEnglish
DOIs
Publication statusPublished - 2007
Externally publishedYes
EventEWOFS 2007: Third European Workshop on Optical Fibre Sensors - , Italy
Duration: 1 Jan 2007 → …

Conference

ConferenceEWOFS 2007: Third European Workshop on Optical Fibre Sensors
CountryItaly
Period1/1/07 → …

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Lupi, C., Felli, F., Caponero, M. A., & Paolozzi, A. (2007). The effectiveness of metal coating on FBG sensor sensitivity at cryogenic temperature. Paper presented at EWOFS 2007: Third European Workshop on Optical Fibre Sensors, Italy. https://doi.org/10.1117/12.738383