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Proceedings Paper

Retro-reflective evanescent field sensors based on Bragg gratings made in biconical tapered fiber with femtosecond IR radiation
Author(s): D. Grobnic; H. Ding; S. J. Mihailov; C. W. Smelser
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Paper Abstract

Retro-reflective Bragg gratings were made with femtosecond radiation from a Ti: sapphire IR laser in the cladding region of a tapered single mode fiber. The evanescent field in the taper interacts with the ambient environment and the intensity of the reflected signal is used to evaluate the ambient refractive index changes as low as 2.5×10-

Paper Details

Date Published: 23 May 2005
PDF: 4 pages
Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); doi: 10.1117/12.640222
Show Author Affiliations
D. Grobnic, Communications Research Ctr. Canada (Canada)
H. Ding, Communications Research Ctr. Canada (Canada)
S. J. Mihailov, Communications Research Ctr. Canada (Canada)
C. W. Smelser, Communications Research Ctr. Canada (Canada)

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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