期刊
IEEE PHOTONICS TECHNOLOGY LETTERS
卷 27, 期 8, 页码 817-820出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2015.2391912
关键词
Fabry-Perot
Over decades, the signal demodulation techniques of low-finesse Fabry-Perot interferometer (FPI) sensors have been either slow with wide dynamic range and absolute measurement capability, or fast with narrow dynamic range and relative measurement capability. The tradeoff between the speed and the measurement capability has greatly limited the application of FPI-based sensors. In this letter, a novel high-speed white light interferometry (WLI) demodulation algorithm for low-finesse FPI has been developed. By realizing high-speed absolute demodulation utilizing full spectra, the new algorithm has the advantage of spectral drift immunity, high precision, and simultaneous ac and dc signal measurement capability, such as acoustic and temperature. A 70-kHz real-time WLI demodulation experiment was conducted in lab, in which the speed was limited only by the spectrometer hardware.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据