公开(公告)号：US08748848B1

公开(公告)日：2014-06-10

申请号：US13933140

申请日：2013-07-02

申请人： Macau University of Science and Technology

发明人： Jianqing Li ,  Ben Xu

IPC分类号： G01N21/64 ,  G01N21/65

CPC分类号： G01N21/643 ,  H01S3/305

摘要： A method of generating Raman laser for inducing fluorescence of fluoranthene and a system thereof is disclosed. The system comprising a pulsed laser, a frequency doubling crystal, a frequency quadrupling crystal, a light filter unit, a quarter-wave plate, a Raman cell filled with deuterium gas( ), a light dispersion device and an optical diaphragm. The method of the present invention comprises the steps of emitting a laser beam pulse through the crystals as mentioned above such that a mixture of lasers is generated. The light filter unit and the quarter-wave plate are used to obtain a circular or ellipsometric polarized pump laser from the mixture of lasers. Finally, the Raman laser is obtained by directing the pump laser into a Raman cell filled with deuterium gas, extracting different orders of stimulated Raman scattering lasers emitted from the Raman cell by the light dispersion device and selecting the desired order of stimulated Raman scattering laser by the optical diaphragm.

摘要翻译： 公开了一种产生拉曼激光以诱导荧蒽荧光的方法及其系统。 该系统包括脉冲激光器，倍频晶体，频率四重晶体，光滤波器单元，四分之一波片，填充有氘气的拉曼电池（），光分散器件和光学隔膜。 本发明的方法包括以下步骤：通过如上所述的晶体发射激光束脉冲，从而产生激光的混合。 光滤波器单元和四分之一波片用于从激光混合物获得圆形或椭偏偏振泵浦激光器。 最后，通过将泵浦激光器引入到填充有氘气的拉曼元件中，通过光散射装置提取从拉曼光电子发射的不同阶数的受激拉曼散射激光，并通过以下方式选择受激拉曼散射激光器的期望顺序来获得拉曼激光： 光学膜片。

公开(公告)号：US09285273B2

公开(公告)日：2016-03-15

申请号：US14146727

申请日：2014-01-03

申请人： Macau University of Science and Technology

发明人： Jianqing Li ,  Ben Xu

IPC分类号： G01K11/00 ,  G01J3/45 ,  G01J3/02 ,  G01J3/10 ,  G01K11/32

CPC分类号： G01J3/45 ,  G01J3/0218 ,  G01J3/10 ,  G01J2005/583 ,  G01K11/3206 ,  G01N21/45 ,  G01N2021/458

摘要： An optical fiber environmental detection system comprising an interferometer, a broadband light source and a detector is disclosed. The interferometer further comprises a thin core fiber, a first single mode fiber and a second single mode fiber; wherein the thin core fiber is coupled to the first and second single mode fiber via a first junction and a second junction respectively. When an emission light reaches the first junction, high-order cladding modes will be excited. The excited cladding modes will interfere with the core mode at the second junction. The interferences determine the intensity maximum or minimum of the received signal. When there is an ambient environmental change, a shift of the received signal would be induced. According to the shift, environmental change, for instance ambient temperature, could be determined.

摘要翻译： 公开了一种包括干涉仪，宽带光源和检测器的光纤环境检测系统。 干涉仪还包括薄芯纤维，第一单模光纤和第二单模光纤; 其中所述薄芯纤维分别经由第一接头和第二接头耦合到所述第一和第二单模光纤。 当发射光到达第一结时，高阶包层模式将被激发。 激发的包层模式将干扰第二结的核心模式。 干扰决定了接收信号的强度最大值或最小值。 当周围环境变化时，会引起接收信号的偏移。 根据这一转变，可以确定环境变化，例如环境温度。

公开(公告)号：US09404856B2

公开(公告)日：2016-08-02

申请号：US13907993

申请日：2013-06-03

申请人： Macau University of Science and Technology

发明人： Jianqing Li ,  Ben Xu ,  Yuanyuan Pan

IPC分类号： G01N21/41 ,  G01N21/43

CPC分类号： G01N21/41 ,  G01N2021/433 ,  G01N2021/438

摘要： An optical detection system for measuring a refractive index of a liquid analyte comprising a light transmitting assembly fiber, which includes a single-mode fiber, an optical fiber sensing module and a multi-mode fiber. The optical detection system is configured to emit a coherent light beam to one end of the assembly fiber; and a detector is configured to capture a specklegram from an exit end of the assembly fiber. When the optical detection system is in operation, the optical fiber sensing module is configured to be submerged into the liquid analyte. By analyzing the correlation between the specklegram corresponding to the liquid analyte and the reference specklegram, the refractive index of the liquid analyte can be obtained.

摘要翻译： 一种用于测量液体分析物的折射率的光学检测系统，包括包括单模光纤，光纤感测模块和多模光纤的光传输组件光纤。 光学检测系统被配置为向组装光纤的一端发射相干光束; 并且检测器被配置为从组装光纤的出口端捕获散斑。 当光学检测系统运行时，光纤传感模块被配置成浸没在液体分析物中。 通过分析对应于液体分析物的散斑图与参考散点图之间的相关性，可以获得液体分析物的折射率。