Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5449373 | Optics Communications | 2017 | 4 Pages |
Abstract
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 â1.94RIUâ1 with a resolution of 1Ã10â3RIU and low sensitivity to temperature, with a cross sensitivity to temperature of 3.6Ã10â4RIU/°C.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Miguel F.S. Ferreira, Gabriela Statkiewicz-Barabach, Dominik Kowal, Pawel Mergo, Waclaw Urbanczyk, Orlando Frazão,