Simplified fiber Bragg grating-based temperature measurement system design with enhanced high signal-to-noise ratio

YÜCEL M. , Torun M.

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, cilt.60, sa.4, ss.965-969, 2018 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 60 Konu: 4
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1002/mop.31080
  • Sayfa Sayıları: ss.965-969


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 degrees C for this study and measurements were performed with 0.06 degrees 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.