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.
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页码：852 / 855
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