A fiber Bragg grating demodulation system based on VCSEL laser and utilizing acetylene gas reference

被引：0

作者：

Wu, Zegong ^{[1
]}

Deng, Shijie ^{[3
]}

Jin, Guangxian ^{[2
]}

Ning, Yanong ^{[2
]}

Li, Zhengjie ^{[4
]}

Cao, Lu ^{[2
]}

Liu, Tongyu ^{[1
,2
]}

机构：

[1] Qilu Univ Technol, Laser Inst, Shandong Acad Sci, Jinan 250104, Shandong, Peoples R China

[2] Shandong Microsensor Photon Co Ltd, Jinan 250103, Shandong, Peoples R China

[3] Guilin Univ Elect Technol, Guilin 541004, Guangxi, Peoples R China

[4] Guilin Donghe Informat Technol Co Ltd, Guilin 541001

来源：

AOPC 2023:OPTIC FIBER GYRO | 2023年 / 12968卷

关键词：

Optical fiber sensor; FBG interrogator; fiber Bragg grating;

D O I：

10.1117/12.3005938

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This paper proposes a low-power, wide demodulation range solution for Fiber Bragg Gratings (FBG) based on voltage and current dual-wavelength tuning of VCSEL lasers. The paper first explains the principle of the demodulation system and then discusses the impact of driving voltage, current, and temperature on the emission wavelength of the laser. By investigating the wavelength scanning overlap range of the laser at different temperatures, the wavelength range of the FBG sensor is determined to be 4.5nm. The experimental results show that the demodulation system exhibits good wavelength repeatability, with the wavelength repeatability of all three channels within +/- 3pm. Furthermore, the overall power consumption of the system is only around 189mW, indicating that the demodulation system possesses the low power consumption characteristic and can be powered by portable power sources.

引用

页数：10

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