A Cost-Eﬀective Edge-Filter Based FBG Interrogator Using Catastrophic Fuse Eﬀect Micro-cavity Interferometers
; Marques, C.
Domingues, M. F.
; R. N. Ribeiro, M. R. N. Ribeiro
; Frizera-Neto, A. Frizera-Neto
; Pontes, M. J.
Measurement: Journal of the International Measurement Confederation Vol. 124, Nº C, pp. 486 - 493, August, 2018.
ISSN (print): 0263-2241
Journal Impact Factor: 2,359 (in 2016)
Digital Object Identifier: 10.1016/j.measurement.2018.03.067
This paper proposed an inexpensive high contrast in-line micro-cavity interferometer for edge-ﬁlter strain and temperature interrogation of a ﬁber Bragg grating sensor. The simulation model is presented in order to describe the sensor behavior which strongly agrees with the experimental results with a mean error lower than 0.04%. The results show evidences of high repeatability and stability achieved in measurements of strain and temperature from 0-1440 µStrain and 5ºC to 50ºC, respectively.