Highly birefringent photonic bandgap Bragg fiber loop mirror for simultaneous measurement of strain and temperature

• Type: Article in International Scientific Journal
• Date: 2011

Authors

Ferreira, MS (Author) Other; Baptista, JM (Author) Other; Roy, P (Author) Other; Jamier, R (Author) Other; Fevrier, S (Author) Other; Frazao, O (Author) FCUP

Journal

Title: Optics Letters

Vol. 36

Pages: 993-995

ISSN: 0146-9592

Publisher: Optical Society of America

Indexing

ISI Web of Knowledge - 17 Citations

Scopus - 19 Citations

Other information

Authenticus ID: P-002-T8D

DOI: 10.1364/ol.36.000993

Abstract (EN): A highly birefringent photonic bandgap Bragg fiber loop mirror configuration for simultaneous measurement of strain and temperature is proposed. The group birefringence and the sharp loss peaks are observable in the spectral response. Because the sensing head presents different sensitivities for strain and temperature measurands, these physical parameters can be discriminated by using the matrix method. It should be noted that this Bragg fiber presents high sensitivity to temperature, of similar to 5.75 nm/degrees C, due to the group birefringence variation. The rms deviations obtained are +/- 19.32 mu e and +/- 0.5 degrees C, for strain and temperature measurements, respectively. (C) 2011 Optical Society of America

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 3