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Simplified fiber Bragg grating‐based temperature measurement system design with enhanced high signal‐to‐noise ratio
Author(s) -
Yucel Muret,
Torun M.
Publication year - 2018
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.31080
Subject(s) - fiber bragg grating , materials science , optics , signal to noise ratio (imaging) , noise (video) , transmission (telecommunications) , laser , physics , engineering , telecommunications , computer science , artificial intelligence , image (mathematics)
In this study, a temperature measurement was performed by determining the linear slope in the transmission spectrum of fiber Bragg grating (FBG) and by designing a temperature measurement system with the density fluctuation of a stationary continuous wave (CW) laser light on this line. The measuring range, which may change depending on the transmission spectrum of the FBG, was determined to be 12°C for this study and measurements were performed with 0.06°C accuracy. Gaussian fitting with negligible time loss and high noise immunity increased the signal‐to‐noise ratio (SNR) ratio to 37.5 dB. A simple, cost‐ efficient, high‐speed, and high SNR, ergonomic, compact temperature measurement system was created with the suggested slope technique and by using a very limited number of fiber optic components.