Simultaneous measurement of displacement and temperature using a low finesse cavity and a fiber Bragg grating

• Type: Article in International Scientific Journal
• Date: 1996

Authors

Ferreira, LA (Author) Other; Ribeiro, ABL (Author) Other; Santos, JL (Author) FCUP; Farahi, F (Author) Other

Journal

Title: IEEE Photonics Technology Letters

Vol. 8

Pages: 1519-1521

ISSN: 1041-1135

Publisher: IEEE

Indexing

ISI Web of Knowledge - 35 Citations

Scopus - 41 Citations

Scientific classification

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

Other information

Authenticus ID: P-001-DEE

DOI: 10.1109/68.541569

Abstract (EN): An optical sensor capable of simultaneously measuring displacement and temperature is presented. It incorporates a fiber Bragg grating temperature sensor and a low-finesse extrinsic Fabry-Perot cavity. A white light tandem interferometric technique is used to recover signal from the low finesse cavity. Signals obtained from the interferometer and the Bragg grating provide required information to simultaneously determine temperature and displacement. Experimental results are presented which demonstrate the feasibility of this sensor topology in practical applications.

Language: English

Type (Professor's evaluation): Scientific