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    Halogen gas discharge laser electrodes
    3.
    发明申请
    Halogen gas discharge laser electrodes 有权

    公开(公告)号：US20050047471A1

    公开(公告)日：2005-03-03

    申请号：US10877737

    申请日：2004-06-25

    申请人： Thomas Steiger ,  Richard Ujazdowski ,  Timothy Dyer ,  Thomas Duffey ,  Walter Gillespie ,  Bryan Moosman ,  Richard Morton ,  Brian Strate

    发明人： Thomas Steiger ,  Richard Ujazdowski ,  Timothy Dyer ,  Thomas Duffey ,  Walter Gillespie ,  Bryan Moosman ,  Richard Morton ,  Brian Strate

    IPC分类号： H01S20060101 ,  H01S3/038 ,  H01S3/097 ,  H01S3/0971 ,  H01S3/22 ,  H01S3/225

    CPC分类号： H01S3/225 ,  H01S3/0381 ,  H01S3/0385 ,  H01S3/0388 ,  H01S3/0971 ,  H01S3/09713

    摘要： A method and apparatus for operating a gas discharge laser is disclosed which may comprise a laser chamber containing a laser gas, the laser gas comprising a halogen, two elongated electrode elements defining a cathode and an anode, each of the cathode and anode having an elongated discharge receiving region having a discharge receiving region width defining a width of an electric discharge between the electrode elements in the laser gas, the discharge receiving region defining two longitudinal edges, and the anode comprising: a first elongated anode portion comprising a first anode material defining a first anode material erosion rate, located entirely within the discharge receiving region of the anode, a pair of second elongated anode portions comprising a second anode material defining a second anode material erosion rate, respectively located on each side of the first anode portion and at least partially within the discharge receiving region; an elongated electrode center base portion integral with the first elongated anode portion; and wherein each of the respective pair of second elongated anode portions is mechanically bonded to the center base portion. The electrode element may comprise a cathode. The first and second materials may be different materials such as different brass alloys with different erosion rates in the halogen gas. The first elongated cathode portion may comprising a first cathode material, located entirely within the discharge receiving region comprising a first portion of an ellipse intersecting elongated side walls, with a bottom wall opposite the portion of the ellipse; and a pair of second elongated cathode side portions comprising a second cathode material with the intersection of each respective second cathode portion and the portion of the ellipse forming the discharge receiving region of the first cathode portion, forming respective ellipsoidal extensions of the first portion. The members may be mechanically bonded to the center base portion. Some may be diffusion bonded to the center base portion and/or each other. The electrode assembly may have a hooded discharge receiving region extension at respective ends of the electrode and the electrode portion may be formed with or bonded to the center base portion and may have slanted side walls.

    MOTION-STABILISED LIDAR AND METHOD FOR WIND SPEED MEASUREMENT
    5.
    发明申请
    MOTION-STABILISED LIDAR AND METHOD FOR WIND SPEED MEASUREMENT 审中-公开
    运动稳定激光和风速测量方法

    公开(公告)号：US20140300888A1

    公开(公告)日：2014-10-09

    申请号：US14361364

    申请日：2011-11-29

    申请人： Thomas Duffey ,  Athanasios Stefanos Kyriazis ,  Dirk Devriendt ,  Werner Coppye

    发明人： Thomas Duffey ,  Athanasios Stefanos Kyriazis ,  Dirk Devriendt ,  Werner Coppye

    IPC分类号： G01S17/58 ,  G01P5/00

    CPC分类号： G01S17/58 ,  G01P5/00 ,  G01S7/4808 ,  G01S7/497 ,  G01S17/95 ,  Y02A90/19

    摘要： The present invention concerns motion-stabilised LIDAR (100), MS-LIDAR, for measurement of wind speed, comprising: a stabiliser unit (25) having a having a probe end (30) for attachment to a laser radar, LIDAR (10), and a base end (40) for attachment to a buoyant platform (80), which stabiliser unit (25) is configured for at least partial isolation of motions of the base end (40) from the probe end (30); a LIDAR (10), attached in fixed relation to the probe end (40); a motion detector in fixed relation to the probe end (30); which MS-LIDAR (100) is arranged to make wind speed measurements at one or more remote probe volumes.

    摘要翻译： 本发明涉及用于测量风速的运动稳定的LIDAR（100），MS-LIDAR，其包括：具有用于附接到激光雷达的探头端（30）的稳定器单元（25），激光雷达（10） ，以及用于附接到浮力平台（80）的基端（40），所述稳定器单元（25）构造成用于至少部分隔离所述基端（40）与所述探头端（30）的运动; 激光雷达（10），其以固定关系附接到所述探测端（40）; 与所述探针端（30）固定的运动检测器; MS-LIDAR（100）被布置成在一个或多个远程探测器体积上进行风速测量。

    VERY HIGH POWER LASER CHAMBER OPTICAL IMPROVEMENTS
    6.
    发明申请
    VERY HIGH POWER LASER CHAMBER OPTICAL IMPROVEMENTS 审中-公开
    非常大的功率激光室光学改进

    公开(公告)号：US20120307858A1

    公开(公告)日：2012-12-06

    申请号：US13588170

    申请日：2012-08-17

    申请人： Hong Ye ,  Alex Ershov ,  Rajasekhar Rao ,  Daniel Brown ,  Slava Rokitski ,  Rong (Lauren) Liu ,  Ray Cybulski ,  James J. Ferrell ,  Robert Bergstedt ,  John Viatella ,  Thomas Duffey

    发明人： Hong Ye ,  Alex Ershov ,  Rajasekhar Rao ,  Daniel Brown ,  Slava Rokitski ,  Rong (Lauren) Liu ,  Ray Cybulski ,  James J. Ferrell ,  Robert Bergstedt ,  John Viatella ,  Thomas Duffey

    IPC分类号： H01S3/083 ,  G02B5/04

    CPC分类号： G02B5/04 ,  G02B5/12 ,  H01S3/0057 ,  H01S3/0346 ,  H01S3/081 ,  H01S3/225

    摘要： An aspect of the disclosed subject matter includes a method of reducing the laser absorption of a beam reverser prism consisting of at least one of the following: increasing a first distance between a first incident point and a chamfered corner, wherein the first incident point is on a first reflective surface of the prism and the chamfered corner is formed between the first reflective surface and a second reflective surface of the prism, wherein the chamfered corner has a chamfered surface; increasing a second distance between a second incident point and the chamfered corner, wherein the second incident point is on the second reflective surface of the prism; and increasing a reflectivity of the chamfered surface of the chamfered corner of the prism. A method of determining a prime cut for an optical component is also disclosed. A laser including at least one prime cut optical component is also disclosed.

    摘要翻译： 所公开的主题的一个方面包括减少由以下至少之一组成的光束反向棱镜的激光吸收的方法：增加第一入射点和倒角之间的第一距离，其中第一入射点在 在棱镜的第一反射面和第二反射面之间形成棱镜的第一反射面和倒角，其中倒角具有倒角面; 增加第二入射点和倒角之间的第二距离，其中第二入射点在棱镜的第二反射表面上; 并且增加棱镜倒角的倒角表面的反射率。 还公开了一种确定光学部件的主切割的方法。 还公开了包括至少一个初级切割光学部件的激光器。

    Cathodes for fluorine gas discharge lasers
    7.
    发明申请
    Cathodes for fluorine gas discharge lasers 有权

    公开(公告)号：US20060274809A1

    公开(公告)日：2006-12-07

    申请号：US11488205

    申请日：2006-07-18

    申请人： Thomas Steiger ,  Joshua Brown ,  Thomas Duffey ,  Walter Gillespie ,  Richard Morton

    发明人： Thomas Steiger ,  Joshua Brown ,  Thomas Duffey ,  Walter Gillespie ,  Richard Morton

    IPC分类号： H01S3/097

    CPC分类号： H01S3/038 ,  H01S3/036 ,  H01S3/0381 ,  H01S3/0382 ,  H01S3/0385 ,  H01S3/0388 ,  H01S3/097 ,  H01S3/09702 ,  H01S3/0971 ,  H01S3/225 ,  H01S3/2251 ,  H01S3/2256 ,  H01S3/2258

    摘要： A fluorine gas discharge laser electrode for a gas discharge laser having a laser gas containing fluorine is disclosed which may comprise a copper and copper alloy cathode body having an upper curved region containing the discharge footprint for the cathode comprising copper and a lower portion comprising a copper alloy, with the facing portion of the electrode if formed in a arcuate shape extending into straight line portions on either side of the arcuate portion, the straight line portions terminating in vertical straight sides, with the boundary between the copper including at least the arcuate portion, the electrode may comprise a bonded element machined from two pieces of material the first made of copper and the second made of a copper alloy bonded together before machining. The electrode may also comprise a first and a second elongated lopsided V-shaped groove formed along substantially all of the elongated electrode body forming a discharge receiving ridge between the first and second lopsided V-shaped grooves, with a differentially faster eroding material filling the first and second lopsided V-shaped grooves. also disclosed is an electrode system in which the one electrode, e.g., the cathode bows during operation and may comprise at least one of a first and second elongated gas discharge electrode being machined to form a crown to receive the gas discharge that compensates for the bowing of at least one of the gas discharge electrodes during operation of the fluorine gas discharge laser.