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    LDV with Diffractive Optical Element for Transceiver Lens
    2.
    发明申请
    LDV with Diffractive Optical Element for Transceiver Lens 审中-公开
    用于收发镜的衍射光学元件的LDV

    公开(公告)号：US20130208256A1

    公开(公告)日：2013-08-15

    申请号：US13473107

    申请日：2012-05-16

    申请人： Priyavadan MAMIDIPUDI ,  Elizabeth A. Dakin ,  Philip L. Rogers ,  Daniel C. Dakin ,  Rupak Changkakoti ,  Lance Leclair

    发明人： Priyavadan MAMIDIPUDI ,  Elizabeth A. Dakin ,  Philip L. Rogers ,  Daniel C. Dakin ,  Rupak Changkakoti ,  Lance Leclair

    IPC分类号： G01C3/08 ,  G02B27/09

    CPC分类号： G01C3/08 ,  G01S7/4811 ,  G01S7/4815 ,  G01S7/4818 ,  G01S17/95 ,  G02B5/32 ,  G02B27/0927 ,  G02B27/0944 ,  Y02A90/19

    摘要： A transceiver device that includes one or more light sources configured to emit a light beam that includes one or more different wavelengths, and includes a diffractive optical element configured to initiate one or more wavelength specific responses from the light beam to form one or more transmission light beams and to direct the one or more transmission light beams substantially towards a target; and further includes one or more sensor devices configured to receive the one or more transmission light beams and one or more reception light beams that are reflected back from the target. The diffractive optical element (e.g., a holographic element) is used in either a monostatic, bistatic or multistatic design to reduce the required size and/or number of optical elements, lasers and receivers. The transceiver device may be used in a LIDAR system in order to measure air and wind parameters at multiple altitudes.

    摘要翻译： 一种收发器装置，其包括被配置为发射包括一个或多个不同波长的光束的一个或多个光源，并且包括衍射光学元件，所述衍射光学元件被配置为启动来自所述光束的一个或多个波长特定响应以形成一个或多个透射光 并且基本上朝向目标引导一个或多个透射光束; 并且还包括被配置为接收一个或多个发射光束的一个或多个传感器装置和从目标反射回的一个或多个接收光束。 衍射光学元件（例如，全息元件）用于单稳态，双稳态或多状态设计中以减少光学元件，激光器和接收器的所需尺寸和/或数量。 收发器装置可以用在激光雷达系统中，以便在多个高度测量空气和风力参数。

    Laser Doppler Velocimeter With Intelligent Optical Device
    4.
    发明申请
    Laser Doppler Velocimeter With Intelligent Optical Device 审中-公开
    激光多普勒测速仪与智能光器件

    公开(公告)号：US20150185246A1

    公开(公告)日：2015-07-02

    申请号：US13475580

    申请日：2012-05-18

    申请人： Elizabeth A. Dakin ,  Priyavadan Mamidipudi ,  Lance Leclair ,  Philip L. Rogers

    发明人： Elizabeth A. Dakin ,  Priyavadan Mamidipudi ,  Lance Leclair ,  Philip L. Rogers

    IPC分类号： G01P5/26 ,  G01P3/36 ,  G01S7/484 ,  G01S7/487 ,  G01S17/58 ,  G01S7/481

    CPC分类号： G01P5/26 ,  G01S7/4812 ,  G01S7/4818 ,  G01S7/484 ,  G01S17/58 ,  G01S17/95 ,  Y02A90/19

    摘要： Systems and methods for laser based measurement of air parameters are disclosed. An example system includes a coherent source of radiation, a transceiver, an optical mixer, and an intelligent optical device. The coherent source produces a coherent radiation beam that is then transmitted to a target region by the transceiver. The transceiver is further configured to receive a scattered radiation signal from the target region. The optical mixer is configured to receive the scattered radiation signal from the transceiver, receive a reference radiation beam from the coherent source, and to determine a difference between the scattered radiation signal and the reference radiation beam. In certain embodiments, the intelligent optical device is configured to steer, modulate, or condition, at least one of the coherent radiation beam, the scattered radiation signal, and the reference radiation beam.

    摘要翻译： 公开了用于激光测量空气参数的系统和方法。 示例性系统包括相干的辐射源，收发器，光学混合器和智能光学装置。 相干源产生相干辐射束，然后通过收发器传输到目标区域。 收发器还被配置为从目标区域接收散射的辐射信号。 光学混合器被配置为从收发器接收散射辐射信号，接收来自相干源的参考辐射束，并且确定散射辐射信号和参考辐射束之间的差。 在某些实施例中，智能光学装置被配置为引导，调制或调节相干辐射束，散射辐射信号和参考辐射束中的至少一个。

    Laser Wind Velocimeter With Multiple Radiation Sources
    5.
    发明申请
    Laser Wind Velocimeter With Multiple Radiation Sources 审中-公开
    具有多个辐射源的激光风速计

    公开(公告)号：US20130250276A1

    公开(公告)日：2013-09-26

    申请号：US13618140

    申请日：2012-09-14

    申请人： Chia-Chen CHANG ,  Priyavadan Mamidipudi ,  Lance Leclair ,  Peter Gatchell ,  Daniel Dakin ,  Elizabeth A. Dakin

    发明人： Chia-Chen CHANG ,  Priyavadan Mamidipudi ,  Lance Leclair ,  Peter Gatchell ,  Daniel Dakin ,  Elizabeth A. Dakin

    IPC分类号： G01P5/26

    CPC分类号： G01P5/26 ,  G01S7/4815 ,  G01S7/4818 ,  G01S17/58 ,  G01S17/87 ,  G01S17/95 ,  Y02A90/19

    摘要： A system and method for measuring wind velocities are provided. A laser wind velocimeter with a radiation source includes a fiber laser. All optical signals, transmitted and received, are conveyed by optical fibers. An amplifier amplifies a source laser, which is then transmitted to one or more transceivers. The one or more transceivers, each projecting along a different axis, and each with a single optical fiber input/output interface act as both the transmission device to focus the radiation at a target region, and as the receiving system for collecting reflected radiation. The one or more transceivers transmit radiation to the target region. A portion of the reflected radiation collected by the receiving system is analyzed to determine the Doppler shift, which can me used to measure wind velocity

    摘要翻译： 提供了一种用于测量风速的系统和方法。 具有辐射源的激光风速计包括光纤激光器。 传输和接收的所有光信号由光纤传送。 放大器放大源激光器，然后将其发送到一个或多个收发器。 一个或多个收发器各自沿着不同的轴突出，并且每个具有单个光纤输入/输出接口充当用于将辐射聚焦在目标区域的传输装置，以及用于收集反射辐射的接收系统。 一个或多个收发器将辐射传输到目标区域。 分析由接收系统收集的反射辐射的一部分，以确定多普勒频移，这可以用于测量风速

    Laser Wind Velocimeter With Multiple Radiation Sources
    6.
    发明申请
    Laser Wind Velocimeter With Multiple Radiation Sources 有权
    具有多个辐射源的激光风速计

    公开(公告)号：US20120206712A1

    公开(公告)日：2012-08-16

    申请号：US13026932

    申请日：2011-02-14

    申请人： Chia-Chen Chang ,  Priyavadan Mamidipudi ,  Lance Leclair ,  Peter Gatchell ,  Daniel Dakin ,  Elizabeth A. Dakin

    发明人： Chia-Chen Chang ,  Priyavadan Mamidipudi ,  Lance Leclair ,  Peter Gatchell ,  Daniel Dakin ,  Elizabeth A. Dakin

    IPC分类号： G01P3/36 ,  H02P9/04

    CPC分类号： G01P5/26 ,  G01S7/4815 ,  G01S7/4818 ,  G01S17/58 ,  G01S17/87 ,  G01S17/95 ,  Y02A90/19

    摘要： A system and method for measuring wind velocities are provided. A laser wind velocimeter with a radiation source includes a fiber laser. All optical signals, transmitted and received, are conveyed by optical fibers. An amplifier amplifies a source laser, which is then transmitted to one or more transceivers. The one or more transceivers, each projecting along a different axis, and each with a single optical fiber input/output interface act as both the transmission device to focus the radiation at a target region, and as the receiving system for collecting reflected radiation. The one or more transceivers transmit radiation to the target region. A portion of the reflected radiation collected by the receiving system is analyzed to determine the Doppler shift, which can me used to measure wind velocity

    摘要翻译： 提供了一种用于测量风速的系统和方法。 具有辐射源的激光风速计包括光纤激光器。 传输和接收的所有光信号由光纤传送。 放大器放大源激光器，然后将其发送到一个或多个收发器。 一个或多个收发器各自沿着不同的轴突出，并且每个具有单个光纤输入/输出接口充当用于将辐射聚焦在目标区域的传输装置，以及用于收集反射辐射的接收系统。 一个或多个收发器将辐射传输到目标区域。 分析由接收系统收集的反射辐射的一部分，以确定多普勒频移，这可以用于测量风速

    Laser doppler velocimeter
    7.
    发明授权
    Laser doppler velocimeter 有权
    激光多普勒测速仪

    公开(公告)号：US08508722B2

    公开(公告)日：2013-08-13

    申请号：US12988248

    申请日：2008-04-30

    申请人： Phillip L. Rogers ,  Chia Chen Chang ,  Priyavadan Mamidipudi ,  Lance Leclair ,  Peter Gatchell ,  Daniel Dakin ,  Elizabeth Dakin

    发明人： Phillip L. Rogers ,  Chia Chen Chang ,  Priyavadan Mamidipudi ,  Lance Leclair ,  Peter Gatchell ,  Daniel Dakin ,  Elizabeth Dakin

    IPC分类号： G01P3/36

    CPC分类号： G01P5/26 ,  G01S7/4818 ,  G01S17/58

    摘要： A laser Doppler velocimeter is formed using a fiber laser as the lasing medium. Within the velocimeter, all optical signals, transmitted and received, are conveyed by optical fibers. An amplifier amplifies a source laser, which is then transmitted to one or more transceivers. The one or more transceivers, each projecting along a different axis, and each with a single optical fiber input/output interface act as both the transmission device to focus the radiation at a target region, and as the receiving system for collecting reflected radiation. The transceivers each include an amplifier to further amplify the radiation received from the laser source. The one or more transceivers transmit radiation simultaneously to the target region, and may be located remotely from the laser source. The portion of the reflected radiation collected by the receiving system is analyzed to determine the Doppler shift caused by targets at the focal point of the one or more transceivers.

    摘要翻译： 使用光纤激光器作为激光介质形成激光多普勒测速仪。 在速度计内，传输和接收的所有光信号由光纤传送。 放大器放大源激光器，然后将其发送到一个或多个收发器。 一个或多个收发器各自沿着不同的轴突出，并且每个具有单个光纤输入/输出接口充当用于将辐射聚焦在目标区域的传输装置，以及用于收集反射辐射的接收系统。 收发器各自包括用于进一步放大从激光源接收的辐射的放大器。 一个或多个收发器将辐射同时发射到目标区域，并且可以远离激光源定位。 分析由接收系统收集的反射辐射的部分以确定由一个或多个收发器的焦点处的目标引起的多普勒频移。

    Laser Doppler Velocimeter
    8.
    发明申请
    Laser Doppler Velocimeter 有权
    激光多普勒测速仪

    公开(公告)号：US20110037970A1

    公开(公告)日：2011-02-17

    申请号：US12988248

    申请日：2008-04-30

    申请人： Phillip L. Rogers ,  Chia Chen Chang ,  Priyavadan Mamidipudi ,  Lance Leclair ,  Peter Gatchell ,  Daniel Dakin ,  Elizabeth Dakin

    发明人： Phillip L. Rogers ,  Chia Chen Chang ,  Priyavadan Mamidipudi ,  Lance Leclair ,  Peter Gatchell ,  Daniel Dakin ,  Elizabeth Dakin

    IPC分类号： G01P3/36

    CPC分类号： G01P5/26 ,  G01S7/4818 ,  G01S17/58

    摘要： A laser Doppler velocimeter is formed using a fiber laser as the lasing medium. Within the velocimeter, all optical signals, transmitted and received, are conveyed by optical fibers. An amplifier amplifies a source laser, which is then transmitted to one or more transceivers. The one or more transceivers, each projecting along a different axis, and each with a single optical fiber input/output interface act as both the transmission device to focus the radiation at a target region, and as the receiving system for collecting reflected radiation. The transceivers each include an amplifier to further amplify the radiation received from the laser source. The one or more transceivers transmit radiation simultaneously to the target region, and may be located remotely from the laser source. The portion of the reflected radiation collected by the receiving system is analyzed to determine the Doppler shift caused by targets at the focal point of the one or more transceivers.

    摘要翻译： 使用光纤激光器作为激光介质形成激光多普勒测速仪。 在速度计内，传输和接收的所有光信号由光纤传送。 放大器放大源激光器，然后将其发送到一个或多个收发器。 一个或多个收发器各自沿着不同的轴突出，并且每个具有单个光纤输入/输出接口充当用于将辐射聚焦在目标区域的传输装置，以及用于收集反射辐射的接收系统。 收发器各自包括用于进一步放大从激光源接收的辐射的放大器。 一个或多个收发器将辐射同时发射到目标区域，并且可以远离激光源定位。 分析由接收系统收集的反射辐射的部分以确定由一个或多个收发器的焦点处的目标引起的多普勒频移。

    Feedback stabilized multimode and method of stabilizing a multimode laser
    9.
    发明申请
    Feedback stabilized multimode and method of stabilizing a multimode laser 审中-公开
    反馈稳定多模和稳定多模激光的方法

    公开(公告)号：US20050175059A1

    公开(公告)日：2005-08-11

    申请号：US10970943

    申请日：2004-10-22

    申请人： Lance Leclair ,  Nigel Holehouse ,  Richard Murison

    发明人： Lance Leclair ,  Nigel Holehouse ,  Richard Murison

    IPC分类号： G02B6/036 ,  G02B6/42 ,  H01S5/14 ,  H01S3/08

    CPC分类号： G02B6/03622 ,  G02B6/02057 ,  G02B6/4202 ,  G02B6/4203 ,  G02B6/424 ,  H01S5/0654 ,  H01S5/141 ,  H01S5/146 ,  H01S5/147

    摘要： A laser assembly (10) comprises a multimode laser (12) having at least one output and operating at a given wavelength. It also includes a double-clad optical fiber (20) having a free end (22) coupled to the output of the laser (12). The optical fiber (20) comprises a core (24) in registry with the output of the laser (12), a multimode inner cladding (26) surrounding the core (24), and an outer cladding (28) surrounding the inner cladding (26), the outer cladding (28) being provided to contain light in the inner cladding (26). A fiber Bragg grating (30) is written in the core (24) of the fiber (20) at a given distance from the free end (22) thereof. The Bragg grating (30) has a reflection spectrum within the gain spectrum of the laser (12). In use, it generates a sufficient feedback and stabilizes the laser (12) at the reflection spectrum of the Bragg grating (30). This provides a low cost laser assembly that is simple, suitable for volume manufacturing and small in size.

    摘要翻译： 激光组件（10）包括具有至少一个输出并在给定波长下操作的多模激光器（12）。 它还包括具有耦合到激光器（12）的输出的自由端（22）的双包层光纤（20）。 光纤（20）包括与激光器（12）的输出对齐的芯（24），围绕芯（24）的多模内包层（26）和围绕内包层的外包层（28） 外包层（28）设置成在内包层（26）中容纳光。 光纤布拉格光栅（30）以与其自由端（22）给定的距离被写入光纤（20）的芯部（24）中。 布拉格光栅（30）在激光器（12）的增益光谱内具有反射光谱。 在使用中，它产生足够的反馈并使激光器（12）在布拉格光栅（30）的反射光谱下稳定。 这提供了一种简单的低成本激光组件，适合于批量制造和尺寸小。