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Linear edge and temperature characteristic of tilted fiber Bragg gratings cladding-mode envelope

机译：倾斜光纤布拉格光栅包层模式包络线的线性边缘和温度特性

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摘要

In this paper, a system of linear edge filter demodulation based on weakly tilted fiber Bragg gratings in fiber sensor was proposed. The linear edge of the cladding-mode envelope and temperature characteristic between cladding modes and core mode of tilted fiber Bragg grating (TFBG) were experimentally investigated. The results show that falling edge (1505-1535 nm) and rising edge (1545-1565 nm) of the cladding-mode envelope is approximately linear and can be used as an edge filter. Moreover, the temperature characteristics of the core mode and cladding modes are similar to FBG's. It can dynamically compensate the temperature induced wavelength shift of the FBG and the effect of temperature on the demodulated sensing signals is minimized. The advantages of this simple system are an all-fiber design, quasi static and dynamic operation, high stability and lower cost.
机译：提出了一种基于微倾斜光纤布拉格光栅的光纤传感器线性边缘滤波器解调系统。实验研究了倾斜光纤布拉格光栅（TFBG）的包层模式包络线的线性边缘和包层模式与纤芯模式之间的温度特性。结果表明，包层模式包络的下降沿（1505-1535 nm）和上升沿（1545-1565 nm）近似线性，可以用作边缘滤波器。此外，核心模式和包层模式的温度特性与FBG相似。它可以动态补偿FBG的温度引起的波长偏移，并且温度对解调的传感信号的影响最小。这种简单系统的优点是全光纤设计，准静态和动态操作，高稳定性和较低的成本。

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  • 来源
    《Optical fiber technology》 |2011年第4期|p.286-290|共5页
  • 作者

    Yin-ping Miao; Bo Liu; Kailiang Zhang; Qi-da Zhao;

  • 作者单位

    School of Electronics Information Engineering, Tianjin Key Laboratory of Film Electronic and Communication Device, Tianjin University of Technology, Tianjin 300384, China;

    Institute of Modern Optics, Nankai University, Tianjin 300071, China;

    School of Electronics Information Engineering, Tianjin Key Laboratory of Film Electronic and Communication Device, Tianjin University of Technology, Tianjin 300384, China;

    Institute of Modern Optics, Nankai University, Tianjin 300071, 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

    optical fiber sensing; linear edge; dynamic-temperature compensating; tilted fiber bragg grating (tfbg);

    机译：光纤传感线性边缘动态温度补偿倾斜光纤布拉格光栅（TFBG）;

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