利索-全球专利检索

  1. Login
  2. Sign Up

Search Results

42 records (took 0.015 seconds)

    Reduction of timing jitter in a passive Q-switched solid state laser
    1.
    发明授权
    Reduction of timing jitter in a passive Q-switched solid state laser 失效
    在无源Q开关固体激光器中减少定时抖动

    公开(公告)号：US08446925B2

    公开(公告)日：2013-05-21

    申请号：US12696096

    申请日：2010-01-29

    Applicant: Lew Goldberg ,  Brian J Cole ,  John E Nettleton ,  Dallas N Barr

    Inventor： Lew Goldberg ,  Brian J Cole ,  John E Nettleton ,  Dallas N Barr

    IPC: H01S3/113

    CPC classification number: H01S3/11 ,  H01S3/1061 ,  H01S3/113

    Abstract: A method and device for reducing the timing jitter in a passive Q-switched Nd:YAG solid state laser by spatially selective bleaching a thin sheet of a saturable absorber of Cr+4:YAG from a direction orthogonal to the direction of laser emission where the Cr+4:YAG transmission increases 18% when the bleaching probe beam is a single laser diode bar. For steady state operation of a passive Q-switched laser, the pulse-to-pulse timing jitter showed a −12× reduction in standard deviation from 241 nsec for free running operation to 20 nsec with optical triggering.

    Abstract translation: 一种用于通过空间选择性地从与激光发射方向垂直的方向漂白Cr + 4：YAG的可饱和吸收体的薄片来减少无源Q开关Nd：YAG固体激光器中的定时抖动的方法和装置，其中 当漂白探针光束是单个激光二极管条时，Cr + 4：YAG传输增加18％。 对于无源Q开关激光器的稳态操作，脉冲到脉冲定时抖动在自由运行操作时从241ns的标准偏差减小到±20°，光触发时间为20ns。

    MEMS Q-Switched Er:Yb:Glass Laser
    2.
    发明申请
    MEMS Q-Switched Er:Yb:Glass Laser 审中-公开
    MEMS Q开关Er：Yb：玻璃激光器

    公开(公告)号：US20130094525A1

    公开(公告)日：2013-04-18

    申请号：US13273578

    申请日：2011-10-14

    Applicant: John E. Nettleton ,  Lew Goldberg ,  Dallas N. Barr

    Inventor： John E. Nettleton ,  Lew Goldberg ,  Dallas N. Barr

    IPC: H01S3/11

    CPC classification number: H01S3/123 ,  G01S7/484 ,  H01S3/025 ,  H01S3/113 ,  H01S3/1608 ,  H01S3/1618 ,  H01S3/17

    Abstract: The compact Er:Yb:Glass Laser Cavity incorporates all optical components required for a short-pulse laser. These optical components are ‘locked’ into alignment forming an optical laser cavity for diode laser or flash lamp pumping. The optical laser cavity does not need optical alignment after it is fabricated. The improvement upon the original Er:Yb:Glass design replaces the Cobalt Spinel passive Q-switch component with a MEMS active Q-Switch component.

    Abstract translation: 紧凑型Er：Yb：玻璃激光腔结合了短脉冲激光器所需的所有光学元件。 这些光学部件被“锁定”成对齐，形成用于二极管激光器或闪光灯泵浦的光学激光器腔。 光学激光腔在制造后不需要光学对准。 原来的Er：Yb：Glass设计的改进用MEMS活性Q开关组件取代了钴尖晶石无源Q开关组件。

    Digital registration of 3D laser radar data based on manually selected fiducials
    3.
    发明授权
    Digital registration of 3D laser radar data based on manually selected fiducials 失效
    基于手动选择的基准点的3D激光雷达数据的数字登记

    公开(公告)号：US08208131B2

    公开(公告)日：2012-06-26

    申请号：US12828318

    申请日：2010-07-01

    Applicant: Bradley W. Schilling ,  Brian W. Thomas ,  Dallas N. Barr ,  Charlie W. Trussell

    Inventor： Bradley W. Schilling ,  Brian W. Thomas ,  Dallas N. Barr ,  Charlie W. Trussell

    IPC: G01C3/08

    CPC classification number: G01S17/89

    Abstract: A system and method for registering 3D data sets is disclosed based on manual fiducial selection. The technique is useful in imaging obscured targets with 3-D imaging laser radars. For such an exemplary method, which defines a three-dimensional linear shift vector for each data voxel, four fiducials are required to completely define the mapping for a 3D space. An exemplary registration algorithm as disclosed provides an approach to automatically make fine adjustments to the 3D data registration. The tedious technique of shifting data sets relative to each other, in many degrees of freedom, is eliminated. Instead, a fine adjust is applied to the digital mapping function, through fiducial perturbation.

    Abstract translation: 基于手动基准选择公开了一种用于登记3D数据集的系统和方法。 该技术可用于使用3-D成像激光雷达成像遮蔽目标。 对于为每个数据体素定义三维线性移位矢量的这种示例性方法，需要四个基准来完全定义3D空间的映射。 所公开的示例性注册算法提供了自动对3D数据注册进行微调的方法。 消除了在许多自由度上相对于彼此移动数据集的冗长乏味的技术。 相反，通过基准扰动对数字映射函数进行微调。

    MEMS Q-Switched Monoblock Laser
    7.
    发明申请
    MEMS Q-Switched Monoblock Laser 审中-公开
    MEMS Q开关单块激光器

    公开(公告)号：US20130044769A1

    公开(公告)日：2013-02-21

    申请号：US13212434

    申请日：2011-08-18

    Applicant: John E. Nettleton ,  Dallas N. Barr

    Inventor： John E. Nettleton ,  Dallas N. Barr

    IPC: H01S3/11

    CPC classification number: H01S3/025 ,  H01S3/109 ,  H01S3/113 ,  H01S3/121 ,  H01S3/1611 ,  H01S3/1643

    Abstract: A monoblock laser cavity incorporates optical components required for a short-pulse laser. These optical components are ‘locked’ into alignment forming an optical laser cavity for flash lamp or diode laser pumping. Optical alignment is not necessary after the optical laser cavity is fabricated. An exemplary Q-switched monoblock laser replaces the Cr:YAG Q-switch functionality with a MEMS scanner.

    Abstract translation: 单块激光腔包含短脉冲激光器所需的光学元件。 这些光学部件被锁定成对准，形成用于闪光灯或二极管激光泵浦的光学激光腔。 在制造光学激光腔之后，不需要光学对准。 示例性的Q开关单块激光器用MEMS扫描器代替Cr：YAG Q开关功能。

    REDUCTION OF TIMING JITTER IN A PASSIVE Q-SWITCHED SOLID STATE LASER
    8.
    发明申请
    REDUCTION OF TIMING JITTER IN A PASSIVE Q-SWITCHED SOLID STATE LASER 失效
    在被动Q开关固体激光器中减少时序抖动

    公开(公告)号：US20110188522A1

    公开(公告)日：2011-08-04

    申请号：US12696096

    申请日：2010-01-29

    Applicant: Lew Goldberg ,  Brian J. Cole ,  John E. Nettleton ,  Dallas N. Barr

    Inventor： Lew Goldberg ,  Brian J. Cole ,  John E. Nettleton ,  Dallas N. Barr

    IPC: H01S3/113 ,  H01S3/11

    CPC classification number: H01S3/11 ,  H01S3/1061 ,  H01S3/113

    Abstract: A method and device for reducing the timing jitter in a passive Q-switched Nd:YAG solid state laser by spatially selective bleaching a thin sheet of a saturable absorber of Cr+4:YAG from a direction orthogonal to the direction of laser emission where the Cr+4:YAG transmission increases 18% when the bleaching probe beam is a single laser diode bar. For steady state operation of a passive Q-switched laser, the pulse-to-pulse timing jitter showed a −12× reduction in standard deviation from 241 nsec for free running operation to 20 nsec with optical triggering.

    Abstract translation: 一种用于通过空间选择性地从与激光发射方向垂直的方向漂白Cr + 4：YAG的可饱和吸收体的薄片来减少无源Q开关Nd：YAG固体激光器中的定时抖动的方法和装置，其中 当漂白探针光束是单个激光二极管条时，Cr + 4：YAG传输增加18％。 对于无源Q开关激光器的稳态操作，脉冲到脉冲定时抖动在自由运行操作时从241ns的标准偏差减小到±20°，光触发时间为20ns。

    UNSTABLE MONOBLOCK LASER CAVITY
    9.
    发明申请
    UNSTABLE MONOBLOCK LASER CAVITY 失效
    不稳定的单核激光腔

    公开(公告)号：US20080225923A1

    公开(公告)日：2008-09-18

    申请号：US11686336

    申请日：2007-03-14

    Applicant: John E. Nettleton ,  Dallas N. Barr

    Inventor： John E. Nettleton ,  Dallas N. Barr

    IPC: H01S3/08 ,  H01S4/00

    CPC classification number: H01S3/113 ,  H01S3/025 ,  H01S3/0615 ,  H01S3/0621 ,  H01S3/08059 ,  H01S3/1083 ,  Y10T29/49002

    Abstract: A monoblock laser cavity includes a plurality of discrete optical components disposed serially on a substrate and sharing a common optical axis. The optical components include a laser rod of gain material, a Q-switch, an OPO crystal, and an output coupler. The output coupler has at least one convex end face to improve the beam quality.

    Abstract translation: 单块激光器腔包括串联地布置在衬底上并共享公共光轴的多个分立的光学部件。 光学部件包括增益材料的激光棒，Q开关，OPO晶体和输出耦合器。 输出耦合器具有至少一个凸端面以改善光束质量。

    Laser obstacle avoidance apparartus
    10.
    发明授权
    Laser obstacle avoidance apparartus 失效
    激光障碍避免

    公开(公告)号：US07133123B1

    公开(公告)日：2006-11-07

    申请号：US10833634

    申请日：2004-04-27

    Applicant: Jonathan S. Lei ,  Bradley W. Schilling ,  Dallas N. Barr ,  John E. Nettleton ,  Michael M. Quarles

    Inventor： Jonathan S. Lei ,  Bradley W. Schilling ,  Dallas N. Barr ,  John E. Nettleton ,  Michael M. Quarles

    IPC: G01C3/08

    CPC classification number: G01C3/08

    Abstract: The laser obstacle avoidance device of the present invention includes an optical head which includes a laser source which produces a laser signal, crossed cylindrical lenses and through which the laser signal is transmitted, a transceiver including a receiving lens through which a reflected laser signal is received by the transceiver, a receiver and a line filter through which the reflected laser signal is filtered, and scanners which receive the reflected laser signal; and control electronics optically connected to the optical head, wherein the control electronics comprise scanner driver electronics, range processor electronics, power converters, and a display all which produce an x-y display of the terrain scanned by the laser signal wherein the X-axis is driven by a scanner position output and the Y-axis by range data. The system was designed to avoid hazards with emphasis simplicity and low cost. The device has been employed in the field to collect data from natural and man-made objects. A simple, single scan line, range discontinuity detection program has been written and tested. The next step in the process is to interface the output of the processor with driver's display indicating the location of the potential hazard for the operator's closer scrutiny.

    Abstract translation: 本发明的激光障碍物回避装置包括：光头，其包括产生激光信号的激光源，交叉的柱面透镜，激光信号被透射通过的光头，包括接收透镜的收发器，通过该接收透镜接收反射的激光信号 通过收发器，经过滤波的反射激光信号的接收器和线路滤波器以及接收反射的激光信号的扫描仪; 以及控制电子器件，其光学连接到光学头，其中控制电子器件包括扫描器驱动器电子器件，范围处理器电子器件，功率转换器和显示器，其全部产生由激光信号扫描的地形的xy显示，其中X轴被驱动 通过扫描仪位置输出和Y轴按范围数据。 该系统旨在避免危害，重点是简单性和低成本。 该设备已被用于现场从天然和人造物体收集数据。 一个简单的单扫描线，范围不连续检测程序已经被编写和测试。 该过程的下一步是将处理器的输出与驱动程序显示器相连接，指示潜在危险的位置，以便操作人员仔细检查。

Patent Agency Ranking