Fabry-Perot cavity based on polymer FBG as refractive index sensor

• Type: Article in International Scientific Journal
• Date: 2017

Authors

Ferreira, MFS (Author) Other; Statkiewiez Barabach, G (Author) Other; Kowal, D (Author) Other; Mergo, P (Author) Other; Urbanczyk, W (Author) Other; Frazao, O (Author) FCUP

Journal

Title: Optics Communications

Vol. 394

Pages: 37-40

ISSN: 0030-4018

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 8 Citations

Scopus - 11 Citations

Other information

Authenticus ID: P-00M-HKQ

DOI: 10.1016/j.optcom.2017.03.011

Abstract (EN): The use of a polymer fiber as a refractive index sensor is proposed. A fiber Bragg grating is inscribed near the fiber tip and the fiber is cut shorter thus creating a Fabry-Perot cavity. The reflections between the fiber Bragg grating and the fiber end-face create a Fabry-Perot interferometer. The sensor was characterized to refractive index changes at constant temperature and to temperature at constant refractive index using a fast Fourier transform analysis of the interference signal. The sensor revealed a sensitivity of-1. 94 RIU-1 with a resolution of lx10(-3)RITJ and low sensitivity to temperature, with a cross sensitivity to temperature of 3. 6x10(-4)RIU/degrees C.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4