Fiber Bragg grating demodulation system based on fiber fabry-perot etalon and multi-gratings calibrated

被引：0

作者：

Wang J.-H. ^{[1
]}

Xu X.-M. ^{[1
]}

Ding J.-F. ^{[1
]}

Ding Y.-P. ^{[1
]}

Yin L.-Z. ^{[1
]}

机构：

[1] Central South University, School of Physics and Electronics, Changsha

来源：

Guangzi Xuebao/Acta Photonica Sinica | 2016年 / 45卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Fabry-Perot filter; Fabry-Perotetalon; Fiber Bragg grating demodulation; Fiber Bragg grating sensor; Multi-gratings establish;

D O I：

10.3788/gzxb20164506.0606003

中图分类号：

学科分类号：

摘要：

In order to eliminate the fiber Bragg grating demodulation error caused by the interference peak shifting of Fabry-Perot etalon, a method was proposed that multi-gratings were utilized to calibrate the wavelength of Fabry-Perot etalon, and a demodulation platform was established. Sampling channels were respectively connected with sensor gratings, Fabry-Perot etalon and reference gratings, and interference peak wavelengths with high precision were calibrated using multi-reference-gratings. Then wavelengths of sensor gratings were calculated using these wavelengths, and calibration error was reduced. The experiment demonstrates that the repeatability error of the fiber Bragg grating demodulation system is less than 1.6 pm, and the wavelength demodulated error is under than 1.8 pm. © 2016, Science Press. All right reserved.

引用

页数：6

共 15 条

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