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首页> 外文期刊>Optical engineering >Phase-generated carrier demodulation scheme for fiber Fabry-Perot interferometric sensor with high finesse
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Phase-generated carrier demodulation scheme for fiber Fabry-Perot interferometric sensor with high finesse

机译：高精细光纤法布里-珀罗干涉传感器的相位产生载波解调方案

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摘要

This paper presents a demodulation scheme using phase-generated carrier (PGC) for a fiber Fabry-Perot interferometric (FFPI) sensor with high finesse. The FFPI is constructed by a polarization maintaining fiber ring resonator with dual-coupler (PMDC-FRR), which can eliminate the polarization induced fading phenomenon. Compared with the former phase demodulation methods, the PGC scheme in this paper does not assume a two-beam interferometric approximation for the Fabry-Perot cavity, and can work at arbitrary value of finesse in theory. Two PMDC-FRRs with reflective coefficients of 0.5 and 0.9 are made in experiments for demodulation. Both the single-frequency and the wideband signals are successfully demodulated from the transmission intensities using the PGC demodulation scheme. The experimental results demonstrate that the PGC demodulation scheme is feasible for the FFPI sensor with high finesse. The effects of the reflective coefficient and the intensity loss to the finesse are also discussed.
机译：本文提出了一种采用相生载波（PGC）的高精细光纤Fabry-Perot干涉（FFPI）传感器的解调方案。 FFPI由带有双耦合器（PMDC-FRR）的保偏光纤环形谐振器构成，可以消除偏振引起的衰落现象。与以前的相位解调方法相比，本文中的PGC方案不假设Fabry-Perot腔的两光束干涉法近似，并且在理论上可以任意精度工作。在解调实验中制作了两个反射系数分别为0.5和0.9的PMDC-FRR。使用PGC解调方案可以成功地从传输强度中解调出单频信号和宽带信号。实验结果表明，PGC解调方案对于高精细FFPI传感器是可行的。还讨论了反射系数和强度损失对精细度的影响。

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  • 来源
    《Optical engineering》 |2011年第9期|p.094401.1-094401.5|共5页
  • 作者

    Wei Rao; Siliang Niu; Nan Zhang; Chunyan Cao; Yongmin Hu;

  • 作者单位

    National University of Defense Technology College of Optoelectric Science and Engineering Changsha, Hunan 410073, China;

    National University of Defense Technology College of Optoelectric Science and Engineering Changsha, Hunan 410073, China;

    National University of Defense Technology College of Optoelectric Science and Engineering Changsha, Hunan 410073, China;

    National University of Defense Technology College of Optoelectric Science and Engineering Changsha, Hunan 410073, China;

    National University of Defense Technology College of Optoelectric Science and Engineering Changsha, Hunan 410073, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    phase generated carrier; fabry-perot; fiber sensor; fiber ring resonator; polarization maintaining fiber ring resonator with dual-coupler;

    机译：相位产生载波法布里-珀罗光纤传感器光纤环形谐振器双耦合器的保偏光纤环形谐振器;

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