High-accuracy real time calibration of tunable Fabry-Pérot filter on large range

被引：0

作者：

Qiao, Xueguang ^{[1
]}

Wang, Yu ^{[1
]}

Fu, Haiwei ^{[1
]}

Zhao, Dazhuang ^{[1
]}

Wang, Wei ^{[1
]}

Zhang, Jing ^{[1
]}

机构：

[1] Shaanxi Key Laboratory of Photoeletronic Sensing Logging, Xi'an Shiyou University, Xi'an 710065, China

来源：

Guangxue Xuebao/Acta Optica Sinica | 2008年 / 28卷 / 05期

关键词：

Bandpass filters - Fabry-Perot interferometers - Calibration - Fibers - Optical variables measurement - Demodulation - Fiber optic sensors;

D O I：

10.3788/AOS20082805.0852

中图分类号：

学科分类号：

摘要：

Absorption spectrum of acetylene (C2H2) is used as the wavelength reference to calibrate the tunable fiber Fabry-Pérot (TFFP) filter in real time, and the accuracy of interrogation system based on TFFP has been improved. According to the free spectrum periodic characteristic of TFFP, a method to increase the wavelength calibration range was proposed. The system has a resolution of 1 pm over a working range of 1525-1615 nm in experiment. Compared with many traditional wavelength reference methods, this interrogation method is greatly improved in measurement precision, wavelength range and working reliability.

引用

页码：852 / 855

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