Fiber Bragg Grating Sensing System Utilizing Fast and Wideband REC-DFB Laser Array

A fast and wideband wavelength-swept laser (WSL) utilizing the reconstruction-equivalent-chirp (REC) technique, integrated with 24 DFB lasers, is proposed and experimentally demonstrated. Additionally, a high-speed FBG sensing system using field-programmable gate arrays (FPGAs) is proposed and demon...

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Published in2024 22nd International Conference on Optical Communications and Networks (ICOCN) pp. 1 - 3
Main Authors Fan, Yaqiang, Dai, Pan, Zhang, Jingxuan, Yuan, L., Xia, Haolin, Kaichuan, X., Wang, Yu, Wang, Jiacheng, Liu, Yuan, Wang, Feng, Chen, Xiangfei
Format Conference Proceeding
LanguageEnglish
Published IEEE 26.07.2024
Subjects
DFB laser array
fiber Bragg grating sensing
Fiber gratings
Laser modes
Laser theory
Real-time systems
Sensors
Temperature sensors
Waveguide lasers
wavelength-swept laser
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Summary:A fast and wideband wavelength-swept laser (WSL) utilizing the reconstruction-equivalent-chirp (REC) technique, integrated with 24 DFB lasers, is proposed and experimentally demonstrated. Additionally, a high-speed FBG sensing system using field-programmable gate arrays (FPGAs) is proposed and demonstrated, achieving stable high-speed sweeping with a wavelength coverage of 50.4 nm and a sweeping frequency of up to 5.85 kHz without mode hopping. The FBG sensing system has a solid-state design without moving parts, enabling real-time, high-speed, and stable monitoring of temperature, pressure, strain, and displacement. Furthermore, the system is cost-effective and anticipated to have diverse industrial applications.
ISSN:2771-3059
DOI:10.1109/ICOCN63276.2024.10648412