Raman fibre Bragg-grating laser sensor with cooperative Rayleigh scattering for strain-temperature measurement

• Type: Article in International Scientific Journal
• Date: 2009

Authors

Frazao, O (Author) Other; Correia, C (Author) Other; Santos, JL (Author) FCUP; Baptista, JM (Author) Other

Journal

Title: Measurement Science and Technology

Vol. 20

Final page: 045203

ISSN: 0957-0233

Publisher: Institute of Physics Publishing

Indexing

ISI Web of Knowledge - 42 Citations

Scopus - 49 Citations

Scientific classification

FOS: Engineering and technology > Other engineering and technologies

Other information

Authenticus ID: P-003-M91

DOI: 10.1088/0957-0233/20/4/045203

Abstract (EN): In this work, a Raman fibre Bragg-grating laser sensor for strain-temperature measurement is presented. The laser resonator is a linear cavity formed by the reflectivity of the Bragg gratings and the virtual distributed mirror formed from the cooperative Rayleigh scattering in a dispersion-compensating fibre created by the Raman effect. Using one pump laser it is possible to obtain a Raman fibre Bragg-grating laser sensor with a range of similar to 35 nm. The sensing system is demonstrated when the fibre Bragg gratings are remotely located at a 10 km distance.

Language: English

Type (Professor's evaluation): Scientific