Fibre refractometer based on a Fabry-Perot interferometer

• Type: Article in International Conference Proceedings Book
• Date: 2008

Authors

Silva, SFO (Author) Other; Frazao, O (Author) Other; Caldas, P (Author) Other; Santos, JL (Author) FCUP; Araujo, FM (Author) Other; Ferreira, LA (Author) Other

Conference proceedings International

Title: 19TH INTERNATIONAL CONFERENCE ON OPTICAL FIBRE SENSORS, PTS 1 AND 2

19th International Conference on Optical Fibre Sensors

Perth, AUSTRALIA, APR 15-18, 2008

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

Scientific classification

FOS: Engineering and technology > Environmental biotechnology

Other information

Authenticus ID: P-004-540

DOI: 10.1117/12.786080

Abstract (EN): 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 similar to 10(-3). It was also observed that the temperature direct cross sensitivity is residual.

Language: English

Type (Professor's evaluation): Scientific