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41 条记录 (耗时 0.018 秒)

    Method And Apparatus For Self-Alignment Connection Of Optical Fiber To Waveguide Of Photonic Integrated Circuit
    2.
    发明申请
    Method And Apparatus For Self-Alignment Connection Of Optical Fiber To Waveguide Of Photonic Integrated Circuit 审中-公开

    公开(公告)号：US20190086614A1

    公开(公告)日：2019-03-21

    申请号：US16130794

    申请日：2018-09-13

    申请人： KVH Industries, Inc.

    发明人： Liming Wang ,  Martin A. Kits van Heyningen

    IPC分类号： G02B6/30

    摘要： An optical device comprises a fiber having a cladding and a core, and a target PIC waveguide having a cladding and a core. The cladding on one side of the input fiber is removed at the end of the fiber and a flat surface is created along the fiber core, close to the core, exposing the fiber core. A flat-bottomed channel having an in-plane angle with respect to the symmetric axis of the PIC waveguide is fabricated on the top layer of the PIC waveguide in the coupling area, exposing the upper surface of the tapered planar waveguide. The flat surface of the fiber and the top surface of the waveguide is contacting, so the core of the fiber is intersected at an angle with respect to the symmetric axis of the target waveguide and close together at the intersection as an interacting region to define a hybrid waveguide.

    Photonic Integrated Circuit For an Interference Fiber Optic Gyroscope (IFOG)
    3.
    发明申请
    Photonic Integrated Circuit For an Interference Fiber Optic Gyroscope (IFOG) 审中-公开

    公开(公告)号：US20180259337A1

    公开(公告)日：2018-09-13

    申请号：US15914061

    申请日：2018-03-07

    申请人： KVH Industries, Inc.

    发明人： Liming Wang

    IPC分类号： G01C19/72 ,  G02B6/42

    CPC分类号： G01C19/721 ,  G01C19/725 ,  G01C19/726 ,  G02B6/4216

    摘要： The described embodiments relate to a photonic integrated circuit (PIC) for use in a fiber optic gyroscope (FOG). Some embodiments describe a PIC with connectors for coupling to external components such as a light source, a photodetector and a fiber coil, with beamsplitting devices (e.g., couplers), waveguide and other photonic components integrated on the PIC. Some embodiments describe a hybrid PIC (HPIC) with the PIC, light source and photodetector attached to a common submount, and with connectors for coupling to a fiber coil. Other embodiments describe an extended PIC (EPIC) that integrates the PIC components, the light source, the photodetector, and other components (e.g., a wavemeter) on a common substrate. The described embodiments may also include a detection/feedback circuit that provides control signals and other parameters to the PIC, HPIC, or EPIC, and receives output signals from the PIC, HPIC, or EPIC.

    Agile Diverse Polarization Multi-Frequency Band Antenna Feed With Rotatable Integrated Distributed Transceivers
    4.
    发明申请
    Agile Diverse Polarization Multi-Frequency Band Antenna Feed With Rotatable Integrated Distributed Transceivers 有权
    敏捷多极化多频天线馈电与可旋转集成分布式收发器

    公开(公告)号：US20140057576A1

    公开(公告)日：2014-02-27

    申请号：US13974886

    申请日：2013-08-23

    申请人： KVH Industries, Inc.

    发明人： Thomas D. Monte ,  Bosui Liu

    IPC分类号： H01Q3/02 ,  H04B1/40

    CPC分类号： H01Q1/125 ,  H01P1/161 ,  H01Q1/34 ,  H01Q3/02 ,  H01Q5/47 ,  H01Q13/02 ,  H01Q15/16 ,  H01Q19/136 ,  H01Q19/193 ,  H04B1/40

    摘要： A compact, agile polarization diversity, multiple frequency band antenna with integrated electronics for terrestrial terminal use in satellite communications systems is disclosed. The antenna includes an antenna feed having highly integrated microwave electronics that are mechanically and electromagnetically coupled thereto in a distributed arrangement so that diverse polarization senses having a low axial ratio and electronic switching control of the polarization senses is provided. The arrangement of the integrated distributed transceiver configuration enables the mechanical rotation of the orientation of a first transceiver for skew alignment while a second transceiver remains stationary relative to the antenna feed assembly. The first transceiver can be a high-band transmitter and receiver pair that supports linear polarization senses and the second transceiver can be a low-band transmitter and receiver pair that supports circular polarization senses. The antenna system presented is highly compact and offers improved polarization performance previously achievable by only larger devices.

    摘要翻译： 公开了一种紧凑，灵活的极化分集，具有用于卫星通信系统中陆地终端使用的集成电子装置的多频带天线。 天线包括具有高度集成的微波电子器件的天线馈电，其以分布式布置机械地和电磁耦合到其上，使得提供具有低轴比和偏振感的电子切换控制的不同极化感。 集成分布式收发器配置的布置使得能够使第一收发器的方向的机械旋转用于偏斜对准，而第二收发器相对于天线馈送组件保持静止。 第一收发器可以是支持线偏振感测的高频发射器和接收器对，第二收发器可以是支持圆偏振感的低频发射器和接收器对。 所呈现的天线系统非常紧凑，并且提供了仅由更大的设备提前改进的极化性能。

    Feed network and method for an offset stacked patch antenna array
    5.
    发明申请
    Feed network and method for an offset stacked patch antenna array 有权
    用于偏移堆叠贴片天线阵列的馈电网络和方法

    公开(公告)号：US20040090370A1

    公开(公告)日：2004-05-13

    申请号：US10290667

    申请日：2002-11-08

    申请人： KVH Industries, Inc.

    发明人： Charles D. McCarrick

    IPC分类号： H01Q021/00

    CPC分类号： H01Q9/0414 ,  H01Q21/0075 ,  H01Q21/065

    摘要： A feed network for, and method of feeding, an array of antenna elements has multiple feed points. Two feed lines extend from the feed points, one having a longer length that the other to provide a phase difference in the two feed lines. The feed lines split into main feed lines, which in turn split into secondary feed lines that connect to the antenna elements. The connections to the elements fed from one of the feed lines are rotated with respect to the connections to the elements fed from the other to provide another phase difference between the elements. The antenna elements may be fed from the longer of the feed lines from one of the feed points and the shorter of the feed lines from an adjacent feed point, with the connections from the feed points providing for right hand and left hand circular polarized elements, respectively.

    摘要翻译： 天线元件阵列的馈电网络和馈电方法具有多个馈电点。 两个进料管线从进料点延伸，一个进料点具有较长的长度，另一个进料点在两个进料管线中提供相位差。 进料管线分成主进料管线，主进料管线又分成连接到天线元件的二次进料管线。 从馈送线之一馈送的元件的连接相对于从另一馈送线馈送的元件的连接而旋转，以提供元件之间的另一相位差。 天线元件可以从进给点中的一个进给点和更短的进给线中的一个进给点从相邻的进给点进给，来自进给点的连接提供右手和左手圆极化元件， 分别。

    In-Situ Residual Intensity Noise Measurement Method And System
    6.
    发明申请
    In-Situ Residual Intensity Noise Measurement Method And System 有权

    公开(公告)号：US20230049259A1

    公开(公告)日：2023-02-16

    申请号：US17819102

    申请日：2022-08-11

    申请人： KVH Industries, Inc.

    发明人： Jan Amir Khan ,  Vijay Ramareddy

    IPC分类号： G01B9/02055 ,  G01B9/02015 ,  G01B9/02

    摘要： A method of determining residual intensity noise (RIN) of a sensor may comprise determining a first amplitude of a first harmonic of the sensor while a signal propagating through the sensor is modulated at a modulating frequency corresponding to twice an eigenfrequency of the sensor. The method may further comprise determining a second amplitude of a second harmonic of the sensor while the signal propagating through the sensor is modulated the modulating frequency, and determining the RIN of the sensor as a ratio of the first amplitude and the second amplitude.

    Integrated Optical Phase Modulator and Method of Making Same
    8.
    发明申请
    Integrated Optical Phase Modulator and Method of Making Same 有权

    公开(公告)号：US20210048721A1

    公开(公告)日：2021-02-18

    申请号：US16543140

    申请日：2019-08-16

    申请人： KVH Industries, Inc.

    发明人： Liming Wang

    IPC分类号： G02F1/225 ,  G02B6/134 ,  G02F1/025

    摘要： A low propagation loss and loose fabrication tolerance waveguide for a photonic integrated circuit (PIC) device may be realized by using a weak optical confinement to the optical mode, through designing a waveguide of single or double thin strips with high aspect ratio as waveguide core. To introduce a modulation functionality on this type of PIC device, a thin-film electrooptic material may be incorporated to form a hybrid phase modulating device, where a material that can be processed easily may be used as a device layer and is bonded to, or deposited with, a thin electrooptic film that may otherwise be difficult to fabricate or process. A low insertion loss, compact size and high-efficiency phase modulator on PIC device with this type of weakly confined waveguide is disclosed.

    Waveguide device with switchable polarization configurations
    9.
    发明授权
    Waveguide device with switchable polarization configurations 有权

    公开(公告)号：US09939585B1

    公开(公告)日：2018-04-10

    申请号：US15606130

    申请日：2017-05-26

    申请人： KVH Industries, Inc.

    发明人： Thomas D. Monte

    IPC分类号： G02B6/00 ,  G02B6/27 ,  H01Q21/24 ,  G02B6/10

    CPC分类号： G02B6/2766 ,  G02B6/105 ,  G02B6/2726 ,  H01P1/065 ,  H01P1/161 ,  H01P1/17 ,  H01Q13/0241 ,  H01Q15/244 ,  H01Q21/245

    摘要： A waveguide device comprises a first circular waveguide segment (CWS) that imparts a 3λ/8 relative phase shift to two orthogonal linearly polarized signals, and a second CWS that imparts a λ/8 relative phase shift to two orthogonal linearly polarized signals. A waveguide assembly (WGA) comprises the first CWS disposed coaxially adjacent to the second CWS. A source may provide dual linear polarized energy into the WGA. In a first mode, the first CWS is axially orientated relative to the second CWS, such that the first CWS polarization is offset by 90° degrees with respect to the second CWS polarization. The radiation source polarization may be offset by 45° relative to the first CWS polarization and the second CWS polarization. In a second mode, the first CWS may be orientated with respect to the second CWS, such that the first CWS polarization and the second CWS polarization are substantially the same.