Frequency modulated continuous wave technique for referencing and multiplexing intensity based fibre optic sensors - art. no. 70044P

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

Authors

Perez Herrera, RA (Author) Other; Pereira, DA (Author) Other; Frazao, O (Author) Other; Castro M C Ferreira (Author) Other; Santos, JL (Author) FCUP; Araujo, FM (Author) Other; Ferreira, LA (Author) Other; Baptista, JM (Author) Other; Lopez Amo, M (Author) Other

Conference proceedings International

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

Pages: P44-P44

19th International Conference on Optical Fibre Sensors

Perth, AUSTRALIA, APR 15-18, 2008

Indexing

ISI Web of Knowledge - 1 Citation

Scopus - 2 Citations

Scientific classification

FOS: Engineering and technology > Environmental biotechnology

Other information

Authenticus ID: P-005-5PC

DOI: 10.1117/12.786121

Abstract (EN): We report on the use of a frequency-reflectometry domain technique for referencing optical intensity sensors located between two fibre Bragg gratings. The experiment combines the concept of frequency modulated continuous wave with the spectrally selective mirror proper-ties of fibre Bragg gratings to interrogate with referencing properties intensity based sensors. Multiplexing two of these sensors using this technique in a parallel topology system was also experimentally demonstrated. Due to the use of different fibre lengths (delay lines), signals from the fibre Bragg gratings located at different positions in an array are separated in the frequency-domain.

Language: English

Type (Professor's evaluation): Scientific