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    LOCATING WELLBORE FLOW PATHS BEHIND DRILL PIPE
    2.
    发明申请
    LOCATING WELLBORE FLOW PATHS BEHIND DRILL PIPE 审中-公开
    定位井筒流量管钻头管

    公开(公告)号：WO2017027025A1

    公开(公告)日：2017-02-16

    申请号：PCT/US2015/044801

    申请日：2015-08-12

    申请人： HALLIBURTON ENERGY SERVICES, INC.

    发明人： LEBLANC, Michel Joseph ,  SKINNER, Neal Gregory ,  LOVORN, James Randolph

    IPC分类号： E21B21/08 ,  E21B47/06 ,  G01V1/40

    CPC分类号： E21B47/0005 ,  E21B19/008 ,  E21B19/08 ,  E21B19/16 ,  E21B21/08 ,  E21B33/14 ,  E21B47/0006 ,  E21B47/06 ,  E21B47/065 ,  E21B47/102 ,  E21B47/123 ,  G01D5/35316 ,  G01K11/3206 ,  G02B6/02076 ,  G02B6/4202 ,  G02B6/43

    摘要： A drilling system includes a string of drill pipe extending into a wellbore from a drilling platform. A Y-block junction is coupled to the string of drill pipe at the drilling platform and provides a pressure housing that defines a first conduit and a second conduit that converges with the first conduit. The pressure housing further defines an outlet configured to be coupled to the string of drill pipe extending into the wellbore. A lubricator is operatively coupled to the Y-block junction at the second conduit, and a cable having one or more optical fibers embedded therein is conveyed into the wellbore within the string of drill pipe via the lubricator and the Y-block junction.

    摘要翻译： 钻井系统包括从钻井平台延伸到井筒中的一串钻杆。 Y型块结点在钻井平台处连接到钻杆组，并提供限定第一导管和与第一导管收敛的第二导管的压力壳体。 压力壳体进一步限定出口，该出口被配置为联接到延伸到井眼中的钻杆串。 润滑器可操作地连接到第二导管处的Y形块结，并且具有嵌入其中的一根或多根光纤的缆线通过润滑器和Y形块结被输送到钻杆管内的井眼中。

    PHOTONIC HYBRID RECEIVE ANTENNA
    3.
    发明申请
    PHOTONIC HYBRID RECEIVE ANTENNA 审中-公开
    光电混合天线

    公开(公告)号：WO2016178893A1

    公开(公告)日：2016-11-10

    申请号：PCT/US2016/029707

    申请日：2016-04-28

    申请人： THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY

    发明人： KELLAR, Kevin

    IPC分类号： G01S7/03 ,  G01S13/42 ,  H01Q3/00

    CPC分类号： G01S13/42 ,  G01S7/03 ,  G01S7/032 ,  G01S7/41 ,  G01S13/865 ,  G01S17/42 ,  G01S2013/0254 ,  G02B6/02076 ,  G02B6/2938 ,  H01Q3/2676

    摘要： Methods and systems for determining true time delay from each receiving element of an 'active electronically scanned array' (AESA) or a phased array antenna. Embodiments of the invention can include electromagnetic EM elements, optical waveguides, and wavelength selective FGBs are collectively configured as a plurality of dual purpose elements that couples an EM field and uses an induced voltage to change an index of refraction of the optical waveguide's electro-optic (EO) material, where the EO material will also function as a dielectric in an antenna element, where the signals comprising optical signals propagate through EM element acting as phase delay elements, where the measuring system compares the reflected signals with a reference signal with no phase delay to determine said signals phase delay.

    摘要翻译： 用于从“有源电子扫描阵列”（AESA）或相控阵列天线的每个接收元件确定真实时间延迟的方法和系统。 本发明的实施例可以包括电磁EM元件，光波导和波长选择性FGB被共同配置为耦合EM场并使用感应电压来改变光波导的电光学折射率的多个双重目的元件 （EO）材料，其中EO材料还将用作天线元件中的电介质，其中包括光信号的信号通过作为相位延迟元件的EM元件传播，其中测量系统将反射信号与没有参考信号进行比较 相位延迟来确定所述信号的相位延迟。

    HIGHLY EFFICIENT OPTICAL GRATINGS WITH REDUCED THICKNESS REQUIREMENTS AND IMPEDANCE-MATCHING LAYERS
    4.
    发明申请
    HIGHLY EFFICIENT OPTICAL GRATINGS WITH REDUCED THICKNESS REQUIREMENTS AND IMPEDANCE-MATCHING LAYERS 审中-公开
    高效率的光栅，具有降低的厚度要求和阻抗匹配层

    公开(公告)号：WO2009061861A3

    公开(公告)日：2009-10-15

    申请号：PCT/US2008082538

    申请日：2008-11-05

    申请人： LIGHTSMYTH TECHNOLOGIES INC

    发明人： GREINER CHRISTOPH M ,  MOSSBERG THOMAS W ,  IAZIKOV DMITRI

    IPC分类号： G02B5/18

    CPC分类号： G02B6/02057 ,  B29D11/0074 ,  G02B5/1809 ,  G02B6/02076

    摘要： An optical grating comprising a grating layer and two surface layers, the layers being arranged with the grating layer between the surface layers. The grating layer comprises a set of multiple, discrete, elongated first grating regions that comprise a first dielectric material and are arranged with intervening elongated second grating regions. The bulk refractive index of the dielectric material of the first grating regions is larger than the bulk refractive index of the second grating regions. The first surface layer comprises a first impedance matching layer, and the second surface layer comprises either (i) a second impedance matching layer or (ii) a reflective layer. Each said impedance matching layer is arranged to reduce reflection of an optical signal transmitted through the corresponding surface of the grating layer, relative to reflection of the optical signal in the absence of said impedance matching layer.

    摘要翻译： 包括光栅层和两个表面层的光栅，这些层与表面层之间的光栅层一起布置。 该光栅层包括一组多个离散细长的第一光栅区域，该第一光栅区域包括第一介电材料并且被布置为具有中间细长的第二光栅区域。 第一光栅区域的介电材料的体积折射率大于第二光栅区域的体积折射率。 第一表面层包括第一阻抗匹配层，第二表面层包括（i）第二阻抗匹配层或（ii）反射层。 相对于在没有所述阻抗匹配层的情况下的光信号的反射，每个所述阻抗匹配层被布置为减少透射通过光栅层的相应表面的光信号的反射。

    WAVELENGTH-SELECTIVE OPTICAL COUPLER
    6.
    发明申请
    WAVELENGTH-SELECTIVE OPTICAL COUPLER 审中-公开
    波长选择光耦合器

    公开(公告)号：WO1996011417A1

    公开(公告)日：1996-04-18

    申请号：PCT/EP1995003976

    申请日：1995-10-09

    申请人： ALCATEL N.V.

    发明人： ALCATEL N.V. ,  SANSONETTI, Pierre ,  RIANT, Isabelle

    IPC分类号： G02B06/293

    CPC分类号： G02B6/2938 ,  G02B6/02076 ,  G02B6/12007 ,  G02B6/124 ,  G02B6/29334

    摘要： A wavelength-selective optical coupler has an optical coupler (C) arranged between two waveguide structures. The coupler (C) has a coupling zone arranged between said waveguide structures and a Bragg cell (B) within said coupling zone. In a preferred embodiment, the optical coupler (C) is a 100 % light-transmitting coupler. In various different embodiments, the coupler (C) is made of optical fibres or by techniques of optoelectronic integration on a semiconductor glass or silica substrate. The Bragg cell (B) has a constant, multiple or variable pitch. The invention has applications in optical wavelength multiplexing information transmission systems. Said coupler is to be made using standard diameter fibres. However, such fibres have a low Germanium (Ge) content giving them low sensitivity to UV light and making inscription of the Bragg pattern difficult. This problem can be solved by sensitising the fibre to UV light in a different manner, such as by increasing the hydrogen content within the fibre by placing the coupler in a hydrogen atmosphere at high pressure (100-300 bars) for a few weeks. An adequate quantity of hydrogen will be absorbed to make the fibres UV-sensitive and to enable Bragg pattern inscription in the coupling region.

    摘要翻译： 波长选择性光耦合器具有布置在两个波导结构之间的光耦合器（C）。 耦合器（C）具有布置在所述耦合区域内的所述波导结构和布拉格单元（B）之间的耦合区域。 在优选实施例中，光耦合器（C）是100％透光耦合器。 在各种不同的实施例中，耦合器（C）由光纤或通过半导体玻璃或二氧化硅衬底上的光电集成技术制成。 布拉格单元（B）具有恒定的，多个的或可变的间距。 本发明在光波长复用信息传输系统中具有应用。 所述耦合器将使用标准直径的纤维制成。 然而，这种纤维具有低的锗（Ge）含量，使得它们对UV光的敏感性低，并且难以对Bragg图案进行刻录。 这个问题可以通过使纤维以不同的方式使紫外光敏化，例如通过在高压（100-300巴）的氢气气氛中放置数周来增加纤维内的氢含量来解决。 将吸收足够量的氢气以使纤维成为UV敏感的，并使布拉格图案铭刻在耦合区域中。

    BRANCHING DEVICE FOR FIBER OPTIC CIRCUITS
    8.
    发明申请
    BRANCHING DEVICE FOR FIBER OPTIC CIRCUITS 审中-公开
    光纤电路分支装置

    公开(公告)号：WO2016099927A1

    公开(公告)日：2016-06-23

    申请号：PCT/US2015/063699

    申请日：2015-12-03

    申请人： PGS GEOPHYSICAL AS ,  WOMACK, Willard

    发明人： WOMACK, Willard

    IPC分类号： G02B6/12 ,  G01V8/16

    CPC分类号： G02B6/125 ,  G01D5/353 ,  G01H9/004 ,  G01V1/20 ,  G01V8/24 ,  G01V2210/1427 ,  G02B6/02033 ,  G02B6/02076 ,  G02B6/12004 ,  G02B6/12016 ,  G02B6/1228 ,  G02B6/2804 ,  G02B6/2813 ,  G02B6/30 ,  G02B6/3608

    摘要： Example devices are optical dividers including: a first optical coupler; a second optical coupler; and a third optical coupler. The devices also comprise a first optical fiber integrated in the first optical coupler, the first optical fiber coupled to an optical combiner, and a second optical fiber integrated in the first optical coupler and in the second optical coupler, the second optical fiber coupled to the optical combiner. The devices further comprise a third optical fiber integrated in the second optical coupler and in the third optical coupler, the third optical fiber coupled to the optical combiner. The optical combiner includes: a first output coupler; a second output coupler; and the optical combiner couples a subset of the first through third optical fibers to the first output coupler; and the optical combiner couples a subset of the first through third optical fibers to the second output coupler.

    摘要翻译： 示例设备是光分配器，包括：第一光耦合器; 第二光耦合器; 和第三光耦合器。 这些装置还包括集成在第一光耦合器中的第一光纤，耦合到光合成器的第一光纤和集成在第一光耦合器中的第二光纤和在第二光耦合器中的第二光纤，第二光纤耦合到 光学组合器。 该装置还包括集成在第二光耦合器中的第三光纤，并且在第三光耦合器中，耦合到光合并器的第三光纤。 光合并器包括：第一输出耦合器; 第二输出耦合器; 并且所述光组合器将所述第一至第三光纤的子集耦合到所述第一输出耦合器; 并且所述光组合器将所述第一至第三光纤的子集耦合到所述第二输出耦合器。

    OPTICAL DETECTOR MODULE, MEASUREMENT SYSTEM AND METHOD OF DETECTING PRESENCE OF A SUBSTANCE IN A TEST MATERIAL
    9.
    发明申请
    OPTICAL DETECTOR MODULE, MEASUREMENT SYSTEM AND METHOD OF DETECTING PRESENCE OF A SUBSTANCE IN A TEST MATERIAL 审中-公开
    检测材料存在的光学检测器模块，测量系统和方法

    公开(公告)号：WO2016055527A2

    公开(公告)日：2016-04-14

    申请号：PCT/EP2015073163

    申请日：2015-10-07

    申请人： UNIV ASTON

    发明人： ZHANG LIN ,  YAN ZHIJUN ,  ZHOU KAIMING ,  ERDENTUG MEHMET AYTUN

    IPC分类号： G01N21/3563

    CPC分类号： G01N21/47 ,  G01N21/3563 ,  G01N21/3577 ,  G01N21/359 ,  G01N21/431 ,  G01N21/7703 ,  G01N33/02 ,  G01N2021/1744 ,  G01N2021/1753 ,  G01N2021/4719 ,  G01N2201/065 ,  G02B6/02076 ,  G02B6/02085

    摘要： Embodiments of the invention comprise apparatus and methods for detecting the presence of a substance in a test material using a plurality of wavelength-specific couplers (e.g. tilted fibre gratings) which provide a spatially distributed multi-node all-optical measurement system. Each node of the measurement system can comprise an optical module that is sensitive to the intensity of a limited band of wavelengths. The node is thus capable of detecting the presence of an absorption peak in a spectrum without having to obtain the full spectrum. By providing a plurality of optical modules that are sensitive to different wavelengths, the spectral signature of different substances may be monitored without having to measure full spectra. The measurement system may be particularly useful in a process control environment where it is desirable to take measurements of one or more substances in different locations.

    摘要翻译： 本发明的实施例包括用于使用提供空间分布式多节点全光学测量系统的多个波长专用耦合器（例如，倾斜光纤光栅）来检测测试材料中物质的存在的装置和方法。 测量系统的每个节点可以包括对有限波长带的强度敏感的光学模块。 节点因此能够检测谱中吸收峰的存在而不必获得全谱。 通过提供对不同波长敏感的多个光学模块，可以监测不同物质的光谱特征，而不必测量全光谱。 测量系统在过程控制环境中特别有用，其中期望测量一个或多个物质在不同位置。