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7 条记录 (耗时 0.033 秒)

    AWG filter for wavelength interrogator
    2.
    发明授权
    AWG filter for wavelength interrogator 有权
    用于波长询问器的AWG滤波器

    公开(公告)号：US08983250B2

    公开(公告)日：2015-03-17

    申请号：US13830939

    申请日：2013-03-14

    申请人： Richard J. Black ,  Joannes M. Costa ,  Fereydoun Faridian ,  Behzad Moslehi ,  Vahid Sotoudeh

    发明人： Richard J. Black ,  Joannes M. Costa ,  Fereydoun Faridian ,  Behzad Moslehi ,  Vahid Sotoudeh

    IPC分类号： G02B6/34 ,  G01J3/02

    CPC分类号： G01J3/0218 ,  G01J3/1895 ,  G01J3/36 ,  G02B6/02057 ,  G02B6/2938 ,  H04J14/0256

    摘要： A wavelength interrogator is coupled to a circulator which couples optical energy from a broadband source to an optical fiber having a plurality of sensors, each sensor reflecting optical energy at a unique wavelength and directing the reflected optical energy to an AWG. The AWG has a detector coupled to each output, and the reflected optical energy from each grating is coupled to the skirt edge response of the AWG such that the adjacent channel responses form a complementary pair response. The complementary pair response is used to convert an AWG skirt response to a wavelength.

    摘要翻译： 波长询问器耦合到循环器，其将来自宽带源的光能耦合到具有多个传感器的光纤，每个传感器将光能量反射到独特的波长并将反射的光能引导到AWG。 AWG具有耦合到每个输出的检测器，并且来自每个光栅的反射光能耦合到AWG的边缘边缘响应，使得相邻信道响应形成互补对响应。 互补对响应用于将AWG裙部响应转换为波长。

    Optical combiner and splitter
    3.
    发明授权
    Optical combiner and splitter 有权

    公开(公告)号：US10261253B1

    公开(公告)日：2019-04-16

    申请号：US15044104

    申请日：2016-02-15

    申请人： Joannes M. Costa ,  Jay A. Chesavage

    发明人： Joannes M. Costa ,  Jay A. Chesavage

    IPC分类号： G02B6/12 ,  G02B6/125 ,  G02B6/136 ,  G02B6/132 ,  G02B6/28

    摘要： An optical power combiner, or splitter, is formed from a first substrate and a second substrate, each substrate having a substantially planar joining surface, at least one substrate having a plurality of waveguide channels formed such as by etching, the plurality of waveguide channels coupled to a waveguide channel combiner having a plurality of waveguide channel apertures, the optical combiner having a single channel aperture on an opposite side from the plurality of waveguide channel apertures, the single channel aperture coupled to a single waveguide channel of zero or greater length, and to an edge opposite the plurality of waveguide channels.

    Fiber optic pressure sensor based on differential signaling
    4.
    发明授权
    Fiber optic pressure sensor based on differential signaling 失效
    基于差分信号的光纤压力传感器

    公开(公告)号：US08402834B1

    公开(公告)日：2013-03-26

    申请号：US12705353

    申请日：2010-02-12

    申请人： Behzad Moslehi ,  Joannes M. Costa

    发明人： Behzad Moslehi ,  Joannes M. Costa

    IPC分类号： G01L11/02

    CPC分类号： G01L9/0076 ,  G01L11/025 ,  G01L19/04

    摘要： A temperature correcting pressure gauge which has a substrate having at least one surface coupled to a source of pressure to be measured, the substrate first surface having a first fiber Bragg grating from a first optical fiber attached in an appropriately sensitive region of the substrate, a fiber Bragg grating from a second optical fiber attached to the opposite surface from the first fiber Bragg grating, the first and second fiber Bragg gratings reflecting or transmitting optical energy of decreasing or increasing wavelength, respectively, in response to an applied pressure. The first and second fiber Bragg gratings have nominal operating wavelength ranges that are adjacent to each other but are exclusive ranges and the fiber Bragg gratings also have closely matched pressure coefficients and temperature coefficients.

    摘要翻译： 一种温度校正压力表，其具有至少一个表面耦合到要测量的压力源的衬底，所述衬底第一表面具有来自连接在所述衬底的适当敏感区域中的第一光纤的第一光纤布拉格光栅， 第一和第二光纤布拉格光栅响应于所施加的压力分别反射或传输递减或增加波长的光能量的第二光纤连接到与第一光纤布拉格光栅相反的表面的光纤布拉格光栅。 第一和第二光纤布拉格光栅具有彼此相邻的标称工作波长范围，但是是专有范围，并且光纤布拉格光栅也具有紧密匹配的压力系数和温度系数。