公开(公告)号：US20110228386A1

公开(公告)日：2011-09-22

申请号：US12410772

申请日：2009-03-25

申请人： William B. KING ,  Chungte W. CHEN ,  Robert W. BYREN ,  Lacy G. COOK

发明人： William B. KING ,  Chungte W. CHEN ,  Robert W. BYREN ,  Lacy G. COOK

IPC分类号： G02B23/00

CPC分类号： G02B26/06 ,  G02B26/0816

摘要： In one or more embodiments, a beam control apparatus and method for correcting aberrations include an off-aperture telescope configured to receive a beam of electromagnetic energy, wherein the telescope includes a first optical element and a second optical element. The second optical element is configured to be translated in three orthogonal axes, and a wavefront error sensor is configured to detect aberrations in the beam and to provide a wavefront error signal in response thereto. A processor is configured to provide a correction signal in response to the wavefront error signal, and an actuator is coupled to the second optical element and configured, in response to the wavefront error signal, to selectively translate the second optical element in one or more of three substantially orthogonal directions corresponding to the three orthogonal axes.

摘要翻译： 在一个或多个实施例中，用于校正像差的光束控制装置和方法包括被配置为接收电磁能量束的孔外望远镜，其中望远镜包括第一光学元件和第二光学元件。 第二光学元件被配置为在三个正交轴中平移，并且波前误差传感器被配置为检测波束中的像差并响应于此提供波前差信号。 处理器被配置为响应于波前误差信号提供校正信号，并且致动器耦合到第二光学元件，并且被配置为响应于波前误差信号，以选择性地平移第二光学元件中的一个或多个 对应于三个正交轴的三个基本正交的方向。

公开(公告)号：US07626152B2

公开(公告)日：2009-12-01

申请号：US11505271

申请日：2006-08-16

申请人： William B. King ,  Chungte W. Chen ,  Robert W. Byren ,  Chaunchy F. McKearn

发明人： William B. King ,  Chungte W. Chen ,  Robert W. Byren ,  Chaunchy F. McKearn

IPC分类号： G01J1/20

CPC分类号： F41H13/005 ,  G01S17/66 ,  G02B5/32 ,  G02B17/0884 ,  G02B23/06 ,  G02B26/06 ,  G02B26/0825 ,  H01S3/005

摘要： A beam control system and method. The system includes an illuminator for providing a first beam of electromagnetic energy at a first wavelength; a source for providing a second beam of electromagnetic energy at a second wavelength; and an arrangement for compensating wavefront errors in the second beam using a bias representative of a comparison between the first wavelength and the second wavelength. In the illustrative embodiment, the arrangement includes a processor which corrects wavefront errors using a bias representative of a difference between said first wavelength and said second wavelength. In the disclosed application, a target wavefront sensor is included and the laser is a high-energy laser beam. The wavefront errors include a chromatic aberration and the errors are compensated using a deformable mirror and a correction algorithm executed by an adaptive optics processor. In one alternative embodiment, the errors are compensated using an optical aberration corrector. The aberration corrector may be a holographic optical element or other suitable device. In another alternative embodiment, the errors are corrected with the above embodiment in combination with the use of “woofer” and “tweeter” correcting elements with the woofer being a long stroke low frequency element and the tweeter being a short stroke high frequency element.

摘要翻译： 梁控制系统及方法。 该系统包括用于在第一波长处提供第一电磁能束的照明器; 用于在第二波长处提供第二电磁能束的源; 以及用于使用表示第一波长和第二波长之间的比较的偏置来补偿第二波束中的波前误差的装置。 在说明性实施例中，该装置包括处理器，其使用表示所述第一波长和所述第二波长之间的差的偏置来校正波前误差。 在所公开的应用中，包括目标波前传感器，激光是高能激光束。 波前误差包括色差，并且使用可变形反射镜和由自适应光学处理器执行的校正算法来补偿误差。 在一个替代实施例中，使用光学像差校正器补偿误差。 像差校正器可以是全息光学元件或其它合适的器件。 在另一替代实施例中，通过使用“低音扬声器”和“高音扬声器”校正元件与低音扬声器是长行程低频元件并且高音单元是短行程高频元件结合使用上述实施例来校正错误。

公开(公告)号：US07041953B2

公开(公告)日：2006-05-09

申请号：US10902624

申请日：2004-07-29

申请人： Robert W. Byren

发明人： Robert W. Byren

IPC分类号： G01J1/20

CPC分类号： G02B26/06 ,  G01J1/0266 ,  G01J9/00

摘要： A beam control system and method: The inventive system includes, an arrangement for receiving a first beam of electromagnetic energy; measuring wavefront aberrations in the first beam with a wavefront sensor; and removing global tilt from the measured wavefront aberrations to provide higher order aberrations for beam control. In the illustrative embodiment, the invention uses a traditional (quad-cell) Shack-Hartmann wavefront sensor to measure wavefront aberrations. An adaptive optics processor electronically removes the global tilt (angular jitter) from this measurement leaving only the higher-order Zernike components. These higher-order aberrations are then applied to wavefront control elements, such as deformable mirrors or spatial light modulators that correct the tracker image and apply a conjugate distortion to the wavefront of the outgoing HEL beam. A track error (angular jitter) component is supplied by a separate fine track sensor. This jitter error is then applied by the adaptive optics processor to a fast steering mirror, which corrects jitter in the tracker image and applies a compensating distortion to the LOS of the HEL beam.

公开(公告)号：US06809307B2

公开(公告)日：2004-10-26

申请号：US09965764

申请日：2001-09-28

申请人： Robert W. Byren ,  Alvin F. Trafton

发明人： Robert W. Byren ,  Alvin F. Trafton

IPC分类号： G01J120

CPC分类号： F41H13/0043 ,  G02B26/06 ,  G02B27/0037 ,  G02B27/4233

摘要： A beam control system and method which utilizes the wavefront reversal property of nonlinear optical phase conjugation to permit incorporation of a liquid crystal OPA within the low power legs of the beam control system, thereby affording the advantages of the OPA without the power limitations thereof. The invention is adapted for use with a beacon for illuminating a target with a first beam of electromagnetic energy. The system includes a telescope (1010) for receiving a target return comprising a reflection of the first beam from the target. An optical phased array (1050) is included for correcting for aberrations in the wavefront of the target return. A mechanism is included for ascertaining the correction applied by the optical phased array to the target return. The mechanism applies the correction to a third beam which ultimately is the output beam. In the illustrative embodiment, the first beam of electromagnetic energy is optical energy and the mechanism includes a first phase conjugate mirror (1091) adapted to conjugate electromagnetic energy output by the third mechanism and a second phase conjugate mirror (1092) adapted to conjugate the output of the first phase conjugate mirror. The fourth mechanism further includes an amplifier (1088) for boosting the signal output by the second phase conjugate mirror (1092) to provide the output beam.

摘要翻译： 使用非线性光学相位共轭的波前反转特性以允许在光束控制系统的低功率支路内并入液晶OPA的光束控制系统和方法，从而提供OPA的优点而无需其功率限制。 本发明适用于与用第一光束电磁能照射目标的信标。 该系统包括用于接收目标返回的望远镜（1010），其包括来自目标的第一光束的反射。 包括用于校正目标返回波前的像差的光学相控阵列（1050）。 包括用于确定由光相位阵列施加到目标返回的校正的机制。 该机构将校正应用于最终是输出光束的第三光束。 在说明性实施例中，第一电磁能量束是光能，并且该机构包括适于共轭由第三机构输出的电磁能量的第一相位共轭反射镜（1091）和适于将输出 的第一相共轭镜。 第四机构还包括用于升高由第二相位共轭反射镜（1092）输出的信号以提供输出光束的放大器（1088）。

公开(公告)号：US6014391A

公开(公告)日：2000-01-11

申请号：US994422

申请日：1997-12-19

申请人： Robert W. Byren

发明人： Robert W. Byren

IPC分类号： H01S3/042 ,  H01S3/06 ,  H01S3/08 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/04

CPC分类号： H01S3/094 ,  H01S3/0941 ,  H01S3/042 ,  H01S3/0606 ,  H01S3/0612 ,  H01S3/0617 ,  H01S3/08072 ,  H01S3/094084

摘要： Methods and apparatus for improving the thermal performance of a slab laser pump cavity is provided. Absorbing regions placed on either side of an active lasing region through which the active region is pumped provides uniform heat dissipation across the width of the slab thereby providing one-dimensional heat flow perpendicular to the broad surfaces of the lasing medium and maintaining uniform lensing and birefringence. Foreshortened cold plates in thermal communication with the active lasing region also provide improved thermal performance by providing uniform one-dimensional heat flow perpendicular to the broad surfaces of the lasing slab. In addition, a compliant thermal interface of variable thickness is provided to also improve the distribution of heat flow. Further, cooling channels located within the cold plates are located to achieve uniform one-dimensional heat flow.

摘要翻译： 提供了一种用于提高板式激光泵腔的热性能的方法和装置。 放置在激活有源区域被泵浦的主动激光区域的任一侧上的吸收区域提供穿过板坯宽度的均匀散热，从而提供垂直于激光介质的宽表面的一维热流并保持均匀的透镜和双折射 。 与激活的激光区域热连通的经过冷却的冷板还通过提供垂直于激光板的宽表面的均匀的一维热流而提供改进的热性能。 此外，还提供了可变厚度的柔性热界面，以改善热流的分布。 此外，位于冷板内的冷却通道被定位以实现均匀的一维热流。

公开(公告)号：US5974061A

公开(公告)日：1999-10-26

申请号：US994423

申请日：1997-12-19

申请人： Robert W. Byren ,  David S. Sumida ,  Hans W. Bruesselbach

发明人： Robert W. Byren ,  David S. Sumida ,  Hans W. Bruesselbach

IPC分类号： H01S3/042 ,  H01S3/06 ,  H01S3/08 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/04

CPC分类号： H01S3/094 ,  H01S3/0941 ,  H01S3/042 ,  H01S3/0606 ,  H01S3/0612 ,  H01S3/08072 ,  H01S3/08095 ,  H01S3/094084

摘要： A laser pump cavity apparatus with integral concentrator provides improved thermal lensing control, cooling and fracture strength. The concentrator is formed around a doped solid-state laser medium by diffusion bonding, using a material different than the doped laser medium and with a substantially lower index of refraction, higher thermal conductivity and higher stress fracture strength than the doped laser crystal. The concentrator has a top cladding layer with a cylindrical focusing surface and a bottom cladding layer with a cylindrical focusing surface and may have edge cladding layers. Cold plates, each of which also has one cylindrical surface, are placed in thermal contact with the cylindrical surfaces of the top and bottom cladding layers. The cylindrical surfaces preferably have hyperbolic or quasi-hyperbolic shape. The laser pump cavity apparatus is preferably pumped with several laser diode arrays in directions transverse to a laser beam axis. The pumplight is injected from the laser diode arrays through the edge cladding layers in directions toward line foci of the cylindrical surfaces. The concentrator top and bottom cladding material is preferably sapphire and the doped solid-state laser medium is preferably Yb:YAG. The edge cladding layers are preferably thermally insulating to maintain a one-dimensional heat flow condition within the doped laser medium, by forming them of a material that has lower thermal conductivity than the material used for the top and bottom cladding layers. The edge cladding layers are preferably made of undoped YAG material

摘要翻译： 具有整体浓缩器的激光泵腔设备提供改进的热透镜控制，冷却和断裂强度。 集中器通过扩散接合形成在掺杂的固态激光介质周围，使用与掺杂的激光介质不同的材料，并且具有比掺杂的激光晶体低得多的折射率，更高的热导率和更高的应力断裂强度。 集中器具有具有圆柱形聚焦表面的顶部包层和具有圆柱形聚焦表面的底部包层，并且可以具有边缘包覆层。 它们中的每一个也具有一个圆柱形表面，与顶部和底部包层的圆柱形表面热接触。 圆柱形表面优选具有双曲线或准双曲线形状。 激光泵腔装置优选地在与激光束轴线横切的方向上用几个激光二极管阵列泵送。 该激光二极管阵列沿着朝向圆柱形表面的线焦点的方向通过边缘包覆层注入。 集中器顶部和底部包层材料优选是蓝宝石，并且掺杂的固态激光介质优选为Yb：YAG。 边缘覆层优选是隔热的，以通过形成具有比用于顶部和底部包层的材料低的导热性的材料来保持掺杂的激光介质内的一维热流条件。 边缘覆层优选由未掺杂的YAG材料制成

公开(公告)号：US20110242285A1

公开(公告)日：2011-10-06

申请号：US12751298

申请日：2010-03-31

申请人： Robert W. BYREN

发明人： Robert W. BYREN

IPC分类号： H04N13/02

CPC分类号： G01B11/24 ,  G01B9/02009 ,  G01B9/02096 ,  G06K9/00228 ,  G06K9/20

摘要： A system for generating an image of contoured surface includes a light source that is configured to project an electromagnetic radiation beam onto the contoured surface, wherein the projected beam generates first radiation reflected from a first portion of the contoured surface to form a speckle pattern, and second radiation reflected from a second portion of the contoured surface which is substantially uniform in intensity. The reflected first and second reflected radiation is received by an optical detector, and may be processed. The processing is configured to (1) generate a plurality of images from the first and second reflected radiation, with each image being generated using different coherence length electromagnetic radiation from the light source, and (2) generate a 3-D image of the contoured surface from the plurality of images. Methods for generating a 3-D image of a contoured surface are also disclosed.

摘要翻译： 用于产生轮廓表面的图像的系统包括被配置为将电磁辐射束投影到轮廓表面上的光源，其中投影光束产生从轮廓表面的第一部分反射的第一辐射以形成散斑图案，以及 第二辐射从成形表面的第二部分反射，强度基本均匀。 反射的第一和第二反射辐射由光学检测器接收，并且可以被处理。 处理被配置为（1）从第一和第二反射辐射生成多个图像，其中使用来自光源的不同相干长度的电磁辐射来生成每个图像，以及（2）生成轮廓线的三维图像 表面。 还公开了用于生成轮廓表面的3D图像的方法。

公开(公告)号：US20110235871A1

公开(公告)日：2011-09-29

申请号：US12749344

申请日：2010-03-29

申请人： Robert W. BYREN ,  Robin REEDER

发明人： Robert W. BYREN ,  Robin REEDER

IPC分类号： G06K9/00 ,  G01B11/02

CPC分类号： G06K9/00033 ,  G06K9/2036

摘要： A system for imaging a textured surface includes a light source that is configured to project an electromagnetic radiation beam onto the textured surface, wherein the projected beam generates first radiation reflected from a first portion of the textured surface to form a speckle pattern, and second radiation reflected from a second portion of the textured surface which is substantially uniform in intensity. The reflected first and second reflected radiation is received by an optical detector, and may be processed to generate an image of the textured surface from the first and second reflected radiation. Methods for textured surface sensing are also disclosed.

摘要翻译： 用于对纹理表面进行成像的系统包括被配置为将电磁辐射束投射到纹理化表面上的光源，其中投影光束产生从纹理化表面的第一部分反射的第一辐射以形成散斑图案，并且第二辐射 从纹理表面的强度基本均匀的第二部分反射。 反射的第一和第二反射辐射由光学检测器接收，并且可以被处理以从第一和第二反射辐射产生纹理表面的图像。 还公开了纹理表面感测的方法。

公开(公告)号：US07474332B2

公开(公告)日：2009-01-06

申请号：US10650212

申请日：2003-08-28

申请人： Robert W. Byren

发明人： Robert W. Byren

IPC分类号： H04N5/225

CPC分类号： G01S17/895 ,  G01S7/481 ,  G01S7/4817

摘要： This invention uses a real-time holographic medium to record the amplitude and phase information collected from a moving platform at the aperture plane of a side-looking optical sensor over the collection time. A back-scan mirror is used to compensate platform motion during the synthetic aperture integration time. Phase errors caused by a nonlinear platform motion are compensated by controlling the phase offset between the illumination beam and the reference beam used to write the hologram based on inertial measurements of the flight path and the sensor line-of-sight pointing angles. In the illustrative embodiment, a synthetic aperture ladar (SAL) imaging system is mounted on a mobile platform. The system is adapted to receive a beam of electromagnetic energy; record the intensity and phase pattern carried by the beam; and store the pattern to compensate for motion of the platform relative to an external reference. In the illustrative embodiment, the image is stored as a holographic image. The system includes a back-scan mirror, which compensates the stored holographic pattern for motion of the platform. The medium and back-scan mirror may be replaced with a digital camera and one-dimensional and two-dimensional arrays may be used. In a specific embodiment, a two-dimensional array is used with a time delay and integration (TDI) scheme, which compensates for motion of the platform in the storage of the optical signals. In an alternative embodiment, a back-scanning mirror is used to compensate for motion of the platform. Consequently, the interference pattern between a relayed image of the aperture plane and a reference beam is continuously stored. In this embodiment, the instantaneous location of the received beam on the recording medium is controlled to compensate for motion of the platform.

摘要翻译： 本发明使用实时全息介质在收集时间内记录在侧视光学传感器的孔径平面处从移动平台收集的振幅和相位信息。 在合成孔径积分时间期间，使用后扫描镜来补偿平台运动。 由非线性平台运动引起的相位误差是通过控制用于写入全息图的照明光束和参考光束之间的相位偏移来补偿的，这是基于飞行路径和传感器视线指向角的惯性测量。 在说明性实施例中，合成孔径（SAL）成像系统安装在移动平台上。 该系统适于接收一束电磁能; 记录光束承载的强度和相位图; 并存储该模式以补偿平台相对于外部参考物的运动。 在说明性实施例中，图像被存储为全息图像。 该系统包括反向扫描镜，其补偿存储的全息图案以用于平台的运动。 可以用数字照相机替换介质和背面扫描镜，并且可以使用一维和二维阵列。 在具体实施例中，二维阵列与时间延迟和积分（TDI）方案一起使用，其补偿平台在光信号存储中的运动。 在替代实施例中，使用反向扫描镜来补偿平台的运动。 因此，连续地存储孔径平面的中继图像与参考光束之间的干涉图案。 在该实施例中，控制接收光束在记录介质上的瞬时位置，以补偿平台的运动。

公开(公告)号：US07439482B2

公开(公告)日：2008-10-21

申请号：US11489000

申请日：2006-07-19

申请人： Robert W. Byren

发明人： Robert W. Byren

IPC分类号： H01L31/00

CPC分类号： H04B10/6911

摘要： A system for setting the bias of a device. The novel bias setting system includes a first system for determining a ratio between noise at an operating gain of the device and noise at a reference gain of the device, and a second system for adjusting the bias until that ratio is equal to a predetermined factor Z. The reference gain is the unity gain or reach-through gain of the device. In an illustrative embodiment, the first system is adapted to measure the noise at operating gain by determining an operating gain threshold, and measure the noise at the reference gain by determining a reference gain threshold. The second system then adjusts the bias until the ratio of the operating gain threshold to the reference gain threshold is equal to the predetermined factor Z.

摘要翻译： 用于设置设备偏置的系统。 新颖的偏置设定系统包括：第一系统，用于确定器件的工作增益下的噪声与设备的参考增益之间的噪声之间的比值;以及用于调整偏置的第二系统，直到该比率等于预定的因子Z 参考增益是设备的单位增益或达到通过增益。 在说明性实施例中，第一系统适于通过确定运行增益阈值来测量运行增益的噪声，并且通过确定参考增益阈值来测量参考增益处的噪声。 然后第二系统调整偏压，直到操作增益阈值与参考增益阈值的比值等于预定因子Z。