Temperature measurement of single point through uniform fiber Bragg grating

Pengrui Wang; Qihao Hu; Meng Wang; Zefeng Wang

doi:10.1117/12.2587573

2 December 2020 Temperature measurement of single point through uniform fiber Bragg grating

Pengrui Wang, Qihao Hu, Meng Wang, Zefeng Wang

Proceedings Volume 11717, 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics; 117173A (2020) https://doi.org/10.1117/12.2587573
Event: 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics, 2020, Shanghai, China

Abstract

We measured the temperature of a single point using a uniform fiber Bragg grating (FBG) for the first time. A quasi- Gaussian temperature distribution pattern was achieved by heating at the midpoint of FBG, then the spectral characteristics, mainly including the central wavelength and amplitude of the resonance peaks were investigated in detail. Results show that the attenuation of each peaks accords well with the theoretical predictions, so the temperature of midpoint can be demodulated by the analysis of transmission spectra.

Citation Download Citation

Pengrui Wang, Qihao Hu, Meng Wang, and Zefeng Wang "Temperature measurement of single point through uniform fiber Bragg grating", Proc. SPIE 11717, 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics, 117173A (2 December 2020); https://doi.org/10.1117/12.2587573

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