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Proceedings Paper

Liquid core fibre Bragg grating based refractive index sensor formed by femtosecond assisted chemical etching technique
Author(s): P. Saffari; Z. Yan; K. Zhou; L. Zhang; I. Bennion
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Paper Abstract

We report the fabrication of a refractive index (RI) sensor based on a liquid core fibre Bragg grating (FBG). A micro-slot FBG was created in standard telecom optical fibre employing the tightly focused femtosecond laser inscription aided chemical etching. A micro-slot with dimensions of 5.74(h) × 125(w) × 1388.72(l) μm was engraved across the whole fibre and along 1mm long FBG which gives advantage of a relatively robust liquid core waveguide. The device performed the refractive index sensitivity up to about 742.72 nm/RIU.

Paper Details

Date Published: 18 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77538P (18 May 2011); doi: 10.1117/12.885086
Show Author Affiliations
P. Saffari, Aston Univ. (United Kingdom)
Z. Yan, Aston Univ. (United Kingdom)
K. Zhou, Aston Univ. (United Kingdom)
L. Zhang, Aston Univ. (United Kingdom)
I. Bennion, Aston Univ. (United Kingdom)


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

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