A VCSEL-based temperature-adaptive FBG demodulation system

Xiaoheng Zhang; Chuancai Wang; Zongtao Chi; Jidong Li

doi:10.1117/12.3029287

6 May 2024 A VCSEL-based temperature-adaptive FBG demodulation system

Xiaoheng Zhang, Chuancai Wang, Zongtao Chi, Jidong Li

Proceedings Volume 13107, Fourth International Conference on Sensors and Information Technology (ICSI 2024); 1310727 (2024) https://doi.org/10.1117/12.3029287
Event: Fourth International Conference on Sensors and Information Technology (ICSI 2024), 2024, Xiamen, China

Abstract

A temperature-adaptive Fiber Bragg Grating (FBG) demodulation system based on a long-wavelength Vertical-Cavity Surface Emitting laser (VCSEL) is designed to reduce power consumption and cost in this paper. The temperature-adaptive FBG system is described in detail through the sections of VCSEL characterisation and selection, selection of the methane absorption peak wavelength and matching with the laser scanning wavelength range, selection of the fiber grating wavelength and matching with the laser scanning wavelength range, and calculation of the FBG wavelength change. The experimental results show that the system has an effective scanning wavelength range of 3.7 nm in the operating environment of 10~40°C without temperature control, and it has the characteristics of low power consumption, low cost and miniaturisation, which can be used as a sensing node in wireless sensing networks.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Xiaoheng Zhang, Chuancai Wang, Zongtao Chi, and Jidong Li "A VCSEL-based temperature-adaptive FBG demodulation system", Proc. SPIE 13107, Fourth International Conference on Sensors and Information Technology (ICSI 2024), 1310727 (6 May 2024); https://doi.org/10.1117/12.3029287

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