Brillouin fibre laser discrete sensor for simultaneous strain and temperature measurement

• Type: Article in International Scientific Journal
• Date: 2007

Authors

Frazao, O (Author) Other; Marques, JM (Author) Other; Santos, JL (Author) FCUP; Marques, MB (Author) FCUP; Baptista, JM (Author) Other

Journal

Title: Applied Physics B: Lasers and Optics

Vol. 86

Pages: 555-558

ISSN: 0946-2171

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-004-BWK

DOI: 10.1007/s00340-006-2516-3

Abstract (EN): In this work, a Brillouin fibre laser sensor for strain and temperature discrimination is presented. The fibre laser sensor consists of a Fabry-Perot cavity with 20 m of optical fibre between two Bragg gratings. For the strain measurement, the 20 m were split in half and in 10 m a pre-tension was applied originating two Brillouin peaks. For the temperature measurement all of the sensing head was heated. The resolutions achieved were +/- 1 mu epsilon and +/- 1 degrees C for strain and temperature measurements, respectively.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4