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    Long delay and high TIS pulse stretcher
    2.
    发明授权
    Long delay and high TIS pulse stretcher 有权

    公开(公告)号：US06928093B2

    公开(公告)日：2005-08-09

    申请号：US10712545

    申请日：2003-11-13

    申请人： R. Kyle Webb ,  Scot T. Smith ,  Roy Luoma

    发明人： R. Kyle Webb ,  Scot T. Smith ,  Roy Luoma

    IPC分类号： H01S3/00 ,  H01S3/036 ,  H01S3/134 ,  H01S3/225 ,  H01S3/23 ,  H01S3/10

    CPC分类号： G03F7/7055 ,  H01S3/0057 ,  H01S3/036 ,  H01S3/134 ,  H01S3/225 ,  H01S3/2251 ,  H01S3/2258 ,  H01S3/2333 ,  H01S3/2366

    摘要： A method and apparatus for laser light pulse stretching is disclosed which may comprise a beam splitter in the path of a laser output light pulse beam; selected to pass a first percent of the energy of a first input pulse of the laser output light pulse beam along a laser output light pulse beam output path as a first output pulse and to reflect a second percent of the energy of the laser output light pulse beam into a first delayed beam; an optical delay path receiving the first delayed beam and returning the first delayed beam to the beam splitter in an orientation such that a third percent of the first delayed beam is reflected into the output path as a second output pulse and a fourth percent is passed into the optical delay path as a second delayed beam; the optical delay path receiving the second delayed beam and returning the second delayed beam to the beam splitter in an orientation such that the third percent of the second delayed beam is reflected into the output path as a third output pulse and the fourth percent of the second delayed beam is passed into the optical delay path as a third delayed beam; the optical delay path receiving the third delayed beam and returning the third delayed beam to the beam splitter in an orientation such that the third percent of the third delayed beam is reflected into the output path as a fourth output pulse; the first input pulse being a first pulse in a plurality of pulses output from a prior pulse stretcher, each of a plurality of succeeding input pulses comprising the output of the prior pulse stretcher resulting from the stretching of a narrow band laser light output pulse, forming successive first, second, third and fourth output pulses, the combination of which forms a pulse stretcher having an output with TIS of at least 200 ns. The optical delay path may be formed of a plurality of at least eight reflecting mirrors and contained in an elongated enclosure having first and second end plates mounting a first group of at least four of the at least eight reflecting mirrors mounted on the first mounting surface symmetrically about a center axis of the optical delay path and a second group of at least four of the at least eight reflecting mirrors mounted on the second mounting surface symmetrically about the center axis. The mirrors may be staggered in a predefined pattern, e.g., a circular pattern. The delay path may lie in a plurality of planes. The apparatus may be part of a laser system, part of a beam delivery system or an interface between the two.

    Coherency Reduction for Bandwidth Measurement
    3.
    发明申请
    Coherency Reduction for Bandwidth Measurement 审中-公开
    一致性降低带宽测量

    公开(公告)号：US20120162657A1

    公开(公告)日：2012-06-28

    申请号：US13411600

    申请日：2012-03-04

    申请人： Robert J. Rafac ,  Scot T. Smith

    发明人： Robert J. Rafac ,  Scot T. Smith

    IPC分类号： G01J3/45

    CPC分类号： G01J3/02 ,  G01J1/4257 ,  G01J3/0205 ,  G01J3/027 ,  G01J3/0291 ,  G01J3/0297 ,  G01J3/1256 ,  G01J3/26 ,  G01J9/02 ,  G01J2009/0249 ,  G01J2009/0257 ,  G02B5/04 ,  G02B5/284 ,  G02B27/48 ,  G03F7/70025 ,  G03F7/70583 ,  H01S3/005

    摘要： A method includes directing a portion of a laser beam output from a laser along a secondary beam path toward a detector, the secondary beam path being distinct from a main beam path of the laser beam; generating a bandwidth selective interference pattern of the laser beam on the detector; detecting, at the detector, a width of a fringe within the interference pattern to thereby measure measuring a bandwidth of the laser beam; and homogenizing the laser beam traveling along the secondary beam path prior to generation of the bandwidth selective interference pattern. The homogenizing includes diffusing the laser beam; and introducing a time dependent, position dependent, or both time and position dependent random modulation to the wavefront of the laser beam to reduce fluctuations in the detected fringe width and to reduce the influence of spatial coherence of the laser beam on the detected interference pattern.

    摘要翻译： 一种方法包括将从激光器输出的激光束的一部分沿着次级光束路径引向检测器，次级光束路径与激光束的主光束路径不同; 在检测器上产生激光束的带宽选择性干涉图案; 在检测器处检测干涉图案内的边缘的宽度，从而测量测量激光束的带宽; 并且在产生带宽选择干涉图案之前均匀化沿着次级光束路径行进的激光束。 均质化包括扩散激光束; 并且将与时间有关的位置依赖性或时间和位置相关随机调制引入到激光束的波前以减少检测到的条纹宽度的波动并减少激光束的空间相干性对检测到的干涉图案的影响。

    Systems and methods for beam splitting for imaging
    4.
    发明授权
    Systems and methods for beam splitting for imaging 有权
    用于成像的分束的系统和方法

    公开(公告)号：US08598559B2

    公开(公告)日：2013-12-03

    申请号：US12804427

    申请日：2010-07-21

    申请人： Scot T. Smith ,  Kimberly M. Blume

    发明人： Scot T. Smith ,  Michael L. Blume

    IPC分类号： G01D5/30 ,  G02B27/14

    CPC分类号： G01D5/30 ,  G02B13/08 ,  G02B13/16 ,  G02B27/1066 ,  G02B27/144

    摘要： Optical systems and methods in accordance with some embodiments discussed herein can receive one or more beams of light from the system's field of view. Internal optical components can then direct the beam of light, including splitting the beam of light, rotating at least one of the split beams of light, and displacing one or more of the beams of light, such that the split beams of light are parallel to each other. Each beam of light may then be directed onto at least one linear detector array. The linear detector array can transform the light into electrical signals that can be processed and presented in a human-readable display.

    摘要翻译： 根据本文讨论的一些实施例的光学系统和方法可以从系统的视场接收一个或多个光束。 内部光学部件然后可以引导光束，包括分离光束，旋转至少一个分束光束，并且移动一束或多束光束，使得分束光束平行于 彼此。 然后可以将每个光束引导到至少一个线性检测器阵列上。 线性检测器阵列可以将光转换成可被处理并呈现在人类可读显示器中的电信号。

    Laser output light pulse stretcher
    5.
    发明授权
    Laser output light pulse stretcher 有权
    激光输出光脉冲担架

    公开(公告)号：US07369597B2

    公开(公告)日：2008-05-06

    申请号：US10847799

    申请日：2004-05-18

    申请人： Scot T. Smith ,  Alexander I. Ershov ,  Alexei Lukashev

    发明人： Scot T. Smith ,  Alexander I. Ershov ,  Alexei Lukashev

    IPC分类号： H01S3/083

    CPC分类号： G03F7/7055 ,  H01S3/0057 ,  H01S3/036 ,  H01S3/134 ,  H01S3/225 ,  H01S3/2251 ,  H01S3/2258 ,  H01S3/2333 ,  H01S3/2366

    摘要： Providing a high peak power short pulse duration gas discharge laser output pulse comprises a pulse stretcher a laser output pulse optical delay initiating optic diverting a portion of the output laser pulse into an optical delay having an optical delay path and comprising a plurality of confocal resonators in series aligned to deliver an output of the optical delay to the laser output pulse optical delay initiating optic. The plurality of confocal resonators comprises four confocal resonators comprising a twelve pass four mirror arrangement. An apparatus and method may comprise a plurality, e.g., two pulse stretchers in series and may include spatial coherency metrology.

    摘要翻译： 提供高峰值功率短脉冲持续时间气体放电激光输出脉冲包括脉冲展宽器，激光输出脉冲光学延迟启动光学，将输出激光脉冲的一部分转移到具有光学延迟路径的光学延迟中，并且包括多个共焦共振器 串联对齐以将光延迟的输出传递到激光输出脉冲光延迟启动光学器件。 多个共焦共振器包括四个共聚焦共振器，其包括十二通四反射镜装置。 装置和方法可以包括多个例如串联的两个脉冲拉伸器，并且可以包括空间相干度计量学。

    Optics for multi dimensional imaging
    6.
    发明申请
    Optics for multi dimensional imaging 有权
    多维成像光学

    公开(公告)号：US20120018616A1

    公开(公告)日：2012-01-26

    申请号：US12804427

    申请日：2010-07-21

    申请人： Scot T. Smith ,  Michael L. Blume ,  Kimberly M. Blume

    发明人： Scot T. Smith ,  Michael L. Blume ,  Kimberly M. Blume

    IPC分类号： G01D5/30 ,  G02B27/14 ,  G02B27/10

    CPC分类号： G01D5/30 ,  G02B13/08 ,  G02B13/16 ,  G02B27/1066 ,  G02B27/144

    摘要： Optical systems and methods in accordance with some embodiments discussed herein can receive one or more beams of light from the system's field of view. Internal optical components can then direct the beam of light, including splitting the beam of light, rotating at least one of the split beams of light, and displacing one or more of the beams of light, such that the split beams of light are parallel to each other. Each beam of light may then be directed onto at least one linear detector array. The linear detector array can transform the light into electrical signals that can be processed and presented in a human-readable display.

    摘要翻译： 根据本文讨论的一些实施例的光学系统和方法可以从系统的视场接收一个或多个光束。 内部光学部件然后可以引导光束，包括分离光束，旋转至少一个分束光束，并且移动一束或多束光束，使得分束光束平行于 彼此。 然后可以将每个光束引导到至少一个线性检测器阵列上。 线性检测器阵列可以将光转换成可被处理并呈现在人类可读显示器中的电信号。