Interrogation of a Suspended-Core Fabry-Perot Temperature Sensor Through a Dual Wavelength Raman Fiber Laser

• Type: Article in International Scientific Journal
• Date: 2010

Authors

Pinto, AMR (Author) Other; Frazao, O (Author) FCUP; Santos, JL (Author) FCUP; Lopez Amo, M (Author) Other; Kobelke, J (Author) Other; Schuster, K (Author) Other

Journal

Title: Journal of Lightwave Technology

Vol. 28 No. 21

Pages: 3149-3155

ISSN: 0733-8724

Publisher: Optical Society of America

Indexing

ISI Web of Knowledge - 56 Citations

ISI Web of Science

Scopus - 65 Citations

Scientific classification

FOS: Engineering and technology > Electrical engineering, Electronic engineering, Information engineering

Other information

Authenticus ID: P-003-1GP

DOI: 10.1109/jlt.2010.2078490

Abstract (EN): sThe interrogation of a Fabry-Perot cavity through a dual wavelength Raman fiber laser is reported. The proposed sensing system is based on the use of a dual wavelength Raman fiber laser to generate two quadrature phase-shifted signals that allow the recovery of the temperature change sensed by the Fabry-Perot interferometric cavity. The dual wavelength Raman fiber laser is based on fiber Bragg gratings combined with a distributed mirror. The Fabry-Perot cavity is fabricated by splicing a short length of a suspended-core microstructured fiber to a single mode fiber. The use of this sensing system allows a passive and accurate interrogation of the temperature, while taking advantage of the Rayleigh scattering growth as a distributed mirror in the laser.

Language: English

Type (Professor's evaluation): Scientific