一种基于空芯反谐振光纤的气体检测系统

    公开(公告)号:CN107884382A

    公开(公告)日:2018-04-06

    申请号:CN201710953540.5

    申请日:2017-10-13

    CPC classification number: G01N21/65 G01N21/01 G01N2201/084 G01N2201/0873

    Abstract: 本发明提供一种基于空芯反谐振光纤的气体检测系统,包括激光器、第一气体腔、空芯反谐振光纤、第二气体腔、光谱仪和数据处理装置;所述空芯反谐振光纤的两端分别与所述第一气体腔、第二气体腔连通;所述第一气体腔、第二气体腔用于向空芯反谐振光纤中注入待检测气体;所述激光器用于向空芯反谐振光纤中输入检测用激光;所述光谱仪用于测量待检测气体产生的拉曼散射光,所述数据处理装置用于对拉曼光谱进行处理,分析待检测气体的成分和浓度。空芯反谐振光纤具有传输损耗低、传输带宽宽、弯曲损耗小、损伤阈值高和保持单模传输的特点,降低拉曼散射的阈值,可以使用较低功率的泵浦光,就能够对微量气体的成分和浓度进行检测。

    Sensor using ultra thin waveguides and optical fibers
    8.
    发明专利
    Sensor using ultra thin waveguides and optical fibers 审中-公开
    传感器使用超薄波和光纤

    公开(公告)号:JP2007183644A

    公开(公告)日:2007-07-19

    申请号:JP2006355813

    申请日:2006-12-28

    Inventor: SANDERS GLEN A

    Abstract: PROBLEM TO BE SOLVED: To provide a highly-sensitive, compact optical resonant sensor for sensing one or more contaminant particles in an environment. SOLUTION: The sensor includes: a substrate 203; a light source 202 operable to emit light on the substrate; at least one optical waveguide 204 on the substrate having a receiving end positioned to receive the light emitted from the light source and configured to allow the light to propagate there through; an optical waveguide ring 210 on the substrate and positioned to receive light emitted from the light source; and a detector 226 configured to measure an increase in a loss of light propagating in the optical waveguide ring; wherein the at least one optical waveguide 204 and the optical waveguide ring 210 form an optical resonator 200 in which that the evanescent tail of a lightwave propagating there through the optical waveguide ring 210 extends into the environment in which the optical resonant sensor is positioned and is sensitive to a contaminant particle in the environment. COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题:提供用于感测环境中的一种或多种污染物颗粒的高灵敏度紧凑的光学谐振传感器。 传感器包括:基板203; 可操作地在基板上发光的光源202; 所述基板上的至少一个光波导204具有接收端,所述接收端被定位成接收从所述光源发射的光并被配置为允许所述光在其上传播; 基板上的光波导环210,被定位成接收从光源发出的光; 以及检测器226,被配置为测量在光波导环中传播的光的损耗的增加; 其中所述至少一个光波导204和光波导环210形成光学谐振器200,其中通过光波导环210在其中传播的光波的渐逝尾部延伸到光学谐振传感器所在的环境中,并且是 对环境中的污染物颗粒敏感。 版权所有(C)2007,JPO&INPIT

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