Simultaneous Measurement of Refractive Index and Temperature Using a Hybrid Fiber Bragg Grating/Long-Period Fiber Grating Configuration

• Type: Article in International Scientific Journal
• Date: 2009

Authors

Jesus, C (Author) Other; Caldas, P (Author) Other; Frazao, O (Author) Other; Santos, JL (Author) FCUP; Jorge, PAS (Author) FCUP; Baptista, JM (Author) Other

Journal

Title: Fiber and Integrated Optics

Vol. 28

Pages: 440-449

ISSN: 0146-8030

Publisher: Taylor & Francis

Indexing

ISI Web of Knowledge - 34 Citations

Scopus - 35 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-003-Q3J

DOI: 10.1080/01468030903290039

Abstract (EN): A fiber optic sensing system for simultaneous measurement of refractive index and temperature, based on a hybrid fiber Bragg grating/long-period grating arrangement is described. The experimental results show that this setup has a good performance in terms of linearity and sensitivity, the ratiometric output changes 4%/0.001 RIU and 3.6%/degrees C, respectively. The sensor resolution for the refractive index is approximate to 2 x 10(-5) RIU. The simultaneous measurement of the refractive index and temperature was demonstrated. The sensing configuration has the ability to be read-out in reflection and works in the telecommunications window.

Language: English

Type (Professor's evaluation): Scientific