Influence of temperature on the refractive index sensitivities of fiber Bragg gratings refractometers

• Published in: Journal of Microwaves, Optoelectronics and Electromagnetic Applications Vol. 16; no. 2; pp. 385 - 392
• Main Authors: Fernandes, Diego, Winter, Rosangela, Silva, Jean Carlos C. da, Kamikawachi, Ricardo C., Macedo, Andreia G.
• Format: Journal Article
• Language: English; Portuguese
• Published: Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo 01.04.2017; Sociedade Brasileira de Microondas e Optoeletrônica; Sociedade Brasileira de Eletromagnetismo
• Subjects: ENGINEERING, ELECTRICAL & ELECTRONIC; fiber Bragg gratings; OPTICS; refractive index sensitivity; temperature sensitivity; thermo-optic effect; fiber Bragg gratings; refractive index sensitivity; temperature sensitivity; thermo-optic effect

Abstract Effect of cross-sensitivity between temperature and refractive index (RI) was studied using an optical sensor based on Bragg grating inscribed in an etched multi-mode fiber (MMF). RI sensitivities of different modes were used to obtain a linear response and temperature dependence in water:g...