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基于光放大的光纤Fizeau应变传感器频分复用系统

江 建 饶云江 周昌学 朱 涛

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基于光放大的光纤Fizeau应变传感器频分复用系统

江 建, 饶云江, 周昌学, 朱 涛

Frequency-multiplexed fiber-optic Fizeau strain sensor system based on optical amplification

Jiang Jian, Rao Yun-Jiang, Zhou Chang-Xue, Zhu Tao
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  • 提出了一种可频分复用基于光放大的光纤Fizeau应变传感器的方法,从原理上解决了现有光纤Fabry-Perot传感器固有的两大弱点:信号弱和复用难.利用掺铒光纤的放大作用,既形成宽带光源,又放大了微弱的信号.描述了该应变传感器系统的结构、原理及实验结果.实验表明该复用传感器应变测量精度可达±10με,可满足实际应用的要求.
    A novel method for multiplexing fiber-optic Fizeau strain sensors based on optical amplification is proposed and demonstrated for the first time to our knowledge. This method overcomes the two intrinsic disadvantages of fiber-optic Fabry-Perot strain sensors, i.e. weak signal and difficult multiplexing. Also, the amplified spontaneous emission and optical amplification of the Erbiumdoped fiber pumped by a 980nm laser diode are used simultaneously. The structure, principle and experimental results of the sensor system are described in this paper. A strain accuracy of ~±10με has been achieved, which can meet the practical requirement.
    • 基金项目: 国家杰出青年基金(批准号:60025515)资助的课题
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  • 文章访问数:  6399
  • PDF下载量:  976
  • 被引次数: 0
出版历程
  • 收稿日期:  2003-08-15
  • 修回日期:  2003-11-18
  • 刊出日期:  2004-07-15

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