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首页> 外文期刊>Optical engineering >Hydrostatic pressure sensors based on ultrashort distributed-Bragg-ref lector fiber lasers
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Hydrostatic pressure sensors based on ultrashort distributed-Bragg-ref lector fiber lasers

机译：基于超短分布布拉格反射器光纤激光器的静水压力传感器

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摘要

We propose and demonstrate, for the first time to our knowledge, simple hydrostatic pressure sensors based on ultrashort dual-polarization distributed-Bragg-reflector fiber lasers. A bare polarimetric laser is used directly to measure the high fluid pressure up to 20 MPa. By detecting the polarization beat signal change generated from the two orthogonal polarization modes in the laser, a 0.42-MHz/Mpa pressure sensitivity and ~5-kPa resolution are achieved. For effectively enhancing the pressure sensitivity, we also exhibit a simple and accurate low-pressure sensor by designing a structure to convert the external pressure to the lateral force on the laser. This sensor shows significant and considerably high sensitivity to hydrostatic pressure of 69.2 MHz/kPa, which is almost 5 orders of magnitude higher than that of a sensor via bare lasers.
机译：我们首次提出并展示了基于超短双偏振分布式布拉格反射光纤激光器的简单静液压传感器。裸极化激光直接用于测量高达20 MPa的高流体压力。通过检测激光器中两个正交偏振模式产生的偏振拍信号变化，可以实现0.42-MHz / Mpa的压力灵敏度和〜5-kPa的分辨率。为了有效地提高压力灵敏度，我们还设计了一种结构，将外部压力转换为作用在激光器上的侧向力，从而提供了一种简单而准确的低压传感器。该传感器对69.2 MHz / kPa的静水压显示出显着且相当高的灵敏度，比通过裸露激光器的静压高出近5个数量级。

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  • 来源
    《Optical engineering》 |2010年第10期|p.10-12|共3页
  • 作者

    Zhiqing Feng; Yang Zhang; Yan-nan Tan; Chuang Wu;

  • 作者单位

    Dalian University of Technology, PolyU-DUT JointResearch Center for Photonics, Dalian, 116024, China,Dalian Nationalities University, School of Science,116600, China;

    Dalian University of Technology, PolyU-DUT JointResearch Center for Photonics, Dalian, 116024, China;

    Dalian University of Technology, PolyU-DUT JointResearch Center for Photonics, Dalian, 116024, China;

    Dalian University of Technology, PolyU-DUT JointResearch Center for Photonics, Dalian, 116024, 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

    fiber lasers; fiber optic sensors; polarization; bragg gratings.;

    机译：光纤激光器光纤传感器;偏振;布拉格光栅。;

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