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A cost-effective edge-filter based FBG interrogator using catastrophic fuse effect micro-cavity interferometers

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Abstract 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… Click to show full abstract

Abstract 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 to 1440  μ Strain and 5  ° C to 50  ° C , respectively.

Keywords: cost effective; micro cavity; edge filter

Journal Title: Measurement
Year Published: 2018

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