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Fiber-optic physical and biochemical sensing based on transient and traveling long-period gratings

机译：基于瞬态和行进长周期光栅的光纤物理和生化传感

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摘要

A fiber-optic sensing platform based on a transient and traveling long-period grating (LPG) in a single-modenoptical fiber has been proposed and demonstrated. The LPG is generated by pulsed acoustic waves thatnpropagate along the fiber. First, we demonstrate the LPG for temperature measurement along the fiber. Byncoating the fiber with ultrathin ionically self-assembled multilayers, we then show that the LPG is capablenof detecting nanometer thickness variations of the fiber. A temperature compensation method is also pro-nposed and demonstrated. Because the acoustically generated LPG travels along the fiber, this advance isnexpected to yield a highly sensitive fully distributed fiber-optic biochemical sensor. © 2008 Optical Society ofnAmerica
机译：提出并演示了基于瞬态和行进长周期光栅（LPG）的单模态光纤的光纤传感平台。 LPG是由沿纤维传播的脉冲声波产生的。首先，我们展示了用于测量光纤温度的液化石油气。通过用超薄离子自组装多层涂层纤维，我们然后证明LPG能够检测纤维的纳米厚度变化。还提出并证明了一种温度补偿方法。由于通过声波产生的LPG沿着纤维传播，因此预计该进展将产生高度灵敏的全分布纤维生化传感器。 ©2008美国眼镜学会

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  • 来源
    《Optics Letters》 |2009年第1期|p.100-102|共3页
  • 作者

    Ming Han* Yunjing Wang Yunmiao Wang and Anbo Wang;

  • 作者单位

    Center for Photonics Technology, Bradley Department of Electrical and Computer Engineering, Virginia PolytechnicInstitute and State University, 460 Turner Street, Suite 303, Blacksburg, Virginia 24060, USA* Corresponding author: mhan@vt.edu;

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