Fibre refractometer based on a Fabry-Pérot interferometer

S. F. O. Silva; O. Frazão; P. Caldas; J. L. Santos; F. M. Araújo; L. A. Ferreira

doi:10.1117/12.786080

16 May 2008 Fibre refractometer based on a Fabry-Pérot interferometer

S. F. O. Silva, O. Frazão, P. Caldas, J. L. Santos, F. M. Araújo, L. A. Ferreira

Proceedings Volume 7004, 19th International Conference on Optical Fibre Sensors; 700446 (2008) https://doi.org/10.1117/12.786080
Event: 19th International Conference on Optical Fibre Sensors, 2008, Perth, WA, Australia

Abstract

It is described a fibre optic sensor for liquid refractive index measurement based on the visibility variations of a Fabry-Perot interferometer with interfering waves generated in a short Bragg grating and in the fibre tip (Fresnel reflection) in contact with the liquid. The sensor was characterized emerging the fibre tip in distilled water with different concentrations of ethylene glycol. A linear relation was obtained, with a readout resolution of ≈ 10^-3. It was also observed that the temperature direct cross sensitivity is residual.

Citation Download Citation

S. F. O. Silva, O. Frazão, P. Caldas, J. L. Santos, F. M. Araújo, and L. A. Ferreira "Fibre refractometer based on a Fabry-Pérot interferometer", Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 700446 (16 May 2008); https://doi.org/10.1117/12.786080

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