公开(公告)号：US6055260A

公开(公告)日：2000-04-25

申请号：US994796

申请日：1997-12-19

申请人： Robert W. Byren ,  Julie L. Bentley ,  Robin A. Reeder

发明人： Robert W. Byren ,  Julie L. Bentley ,  Robin A. Reeder

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

CPC分类号： H01S3/0941 ,  H01S3/094 ,  H01S3/042 ,  H01S3/0606 ,  H01S3/0612 ,  H01S3/0617 ,  H01S3/08072 ,  H01S3/094057 ,  H01S3/094084

摘要： A laser pump cavity apparatus with integral concentrator provides uniform gain and high absorption efficiency. The apparatus has a doped solid-state laser medium, a concentrator which has a top cladding layer formed on the top surface of the doped laser medium having a cylindrical focusing surface, a bottom cladding layer formed on the bottom surface of the doped laser crystal having a cylindrical focusing surface, and edge cladding layers formed on the side surfaces of the doped laser medium. Cold plates, each of which also preferably has one cylindrical surface of substantially identical shape, are placed in thermal contact with the cylindrical focusing surfaces of the top and bottom cladding layers to absorb heat. The cylindrical focusing surfaces preferably have hyperbolic or quasi-hyperbolic shape. The laser pump cavity apparatus is preferably edge-pumped with several laser diode arrays focused toward the line foci of the cylindrical focusing surfaces in directions transverse to a laser beam axis.

摘要翻译： 具有集成式集中器的激光泵腔设备提供均匀的增益和高的吸收效率。 该装置具有掺杂的固体激光介质，集中器，其具有形成在具有圆柱形聚焦表面的掺杂激光介质的顶表面上的顶部包层，形成在掺杂激光晶体的底表面上的底部包层， 圆柱形聚焦表面和形成在掺杂激光介质的侧表面上的边缘覆层。 每个也优选具有一个基本相同形状的圆柱形表面的冷板与顶部和底部包层的圆柱形聚焦表面热接触以吸收热量。 圆柱形聚焦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被边缘泵浦，其中几个激光二极管阵列在垂直于激光束轴线的方向上朝着圆柱形聚焦表面的线焦点聚焦。

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。

公开(公告)号：US20080042042A1

公开(公告)日：2008-02-21

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：US06992818B2

公开(公告)日：2006-01-31

申请号：US10340277

申请日：2003-01-10

申请人： Alexander A. Betin ,  Robert W. Byren ,  Dana P. Franz

发明人： Alexander A. Betin ,  Robert W. Byren ,  Dana P. Franz

IPC分类号： H04B10/12 ,  H01S3/00

CPC分类号： H01S3/2333 ,  H01S3/10076

摘要： A self-adjusting interferometric outcoupler. In the most general sense, the invention is an optical system (100) comprising a first mechanism (112) for generating a first beam, a second mechanism (122) for receiving the first beam and returning a second beam, and an interferometer (116) positioned to couple the first beam to the second mechanism (122) and to receive and output the second beam, wherein the interferometer (116) is also shared by the first mechanism (112) and/or the second mechanism (122) to control the frequency of the first beam and/or the second beam, respectively. In the illustrative embodiment, the first mechanism (112) is a master oscillator, the second mechanism (122) is a phase conjugate mirror, and the system (100) further includes a power amplifier (118) positioned to amplify the first beam during a first pass and to amplify the second beam during a second pass.

摘要翻译： 自调整干涉式输出耦合器。 在最一般的意义上，本发明是一种光学系统（100），包括用于产生第一光束的第一机构（112），用于接收第一光束并返回第二光束的第二机构（122）和干涉仪 ）定位成将第一光束耦合到第二机构（122）并且接收和输出第二光束，其中干涉仪（116）也由第一机构（112）和/或第二机构（122）共享以控制 第一光束和/或第二光束的频率。 在说明性实施例中，第一机构（112）是主振荡器，第二机构（122）是相位共轭反射镜，并且系统（100）还包括功率放大器（118），功率放大器（118）定位成在 第一次通过，并在第二次通过期间放大第二个光束。

公开(公告)号：US06961171B2

公开(公告)日：2005-11-01

申请号：US10272778

申请日：2002-10-17

申请人： Robert W. Byren ,  David Filgas

发明人： Robert W. Byren ,  David Filgas

IPC分类号： F41H11/02 ,  F41H13/00 ,  H01S3/00

CPC分类号： F41H11/02 ,  F41H13/0043 ,  F41H13/005

摘要： A system for directing electromagnetic energy. The inventive system includes a first subsystem mounted on a first platform for transmitting a beam of the electromagnetic energy through a medium and a second subsystem mounted on a second platform for redirecting the beam. In accordance with the invention, the second platform is mobile relative to the first platform. In the illustrative embodiment, the beam is a high-energy laser beam. The first subsystem includes a phase conjugate mirror in optical alignment with a laser amplifier. The first subsystem further includes a beam director in optical alignment with the amplifier and a platform track sensor coupled thereto. In the illustrative embodiment, the second subsystem includes a co-aligned master oscillator, outcoupler, and target track sensor which are fixedly mounted to a stabilized platform, a beam director, and a platform track sensor. In the best mode, the stable platform is mounted for independent articulation relative to the beam director. A first alternative embodiment of the second subsystem includes first and second beam directors. The first beam director is adapted to receive the transmitted beam and the second beam director is adapted to redirect the received beam. In accordance with a second alternative embodiment, an optical fiber is provided for coupling the beam between the first platform and the second platform.

摘要翻译： 一种用于引导电磁能的系统。 本发明的系统包括安装在第一平台上的第一子系统，用于传送电磁能量束通过介质，而第二子系统安装在第二平台上用于重定向光束。 根据本发明，第二平台相对于第一平台是可移动的。 在说明性实施例中，光束是高能激光束。 第一子系统包括与激光放大器光学对准的相位共轭反射镜。 第一子系统还包括与放大器光学对准的光束指向器和与其连接的平台轨道传感器。 在说明性实施例中，第二子系统包括固定地安装到稳定平台，光束导向器和平台轨道传感器的共对准主振荡器，外耦合器和目标轨道传感器。 在最佳模式下，稳定平台相对于光束导向器安装为独立发光。 第二子系统的第一替代实施例包括第一和第二光束导向器。 第一波束导向器适于接收发送的波束，并且第二波束导向器适于重定向接收的波束。 根据第二替代实施例，提供光纤用于在第一平台和第二平台之间耦合光束。

公开(公告)号：US06330256B1

公开(公告)日：2001-12-11

申请号：US09495493

申请日：2000-02-01

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

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

IPC分类号： H01S310

CPC分类号： G02F1/37 ,  G02F1/3501 ,  G02F2001/3505 ,  G02F2001/3507

摘要： A face-cooling scheme is used with multiple nonlinear crystal formats used primarily for second harmonic generation without the need for air-path rephasing between the crystals. Birefringent crystals, e.g., MgF2, are cut and oriented such that there is no dispersion between the fundamental and second harmonic wavelengths within each crystal. The crystals are then disposed in a heat-conducting housing sandwiched by two or more nonlinear crystals and used as the face-cooling medium, thereby causing the heat generated in the nonlinear crystals by absorption at the fundamental and second harmonic wavelengths to flow longitudinally (direction of beam propagation) into the face-cooling medium. This minimizes any transverse thermal gradient in the nonlinear crystals and the attendant dephasing loss. The crystals can be dry stacked with a very small gas-filled gap, immersed in a liquid or gel, bonded with optical cement, optically contacted, or diffusion-bonded together to form a composite crystal. Heat generated in the nonlinear optical elements is passively conducted to the birefringent crystals in a direction parallel to the direction of laser energy propagation and then to the housing.

摘要翻译： 面向冷却方案被用于主要用于二次谐波生成的多种非线性晶体格式，而不需要晶体之间的空气路径重新定相。 剪切并定向双折射晶体，例如MgF 2，使得在每个晶体内的基波和二次谐波波长之间不存在色散。 然后将晶体设置在由两个或更多个非线性晶体夹持的导热壳体中，并用作面冷却介质，从而通过基波和二次谐波波长处的吸收在非线性晶体中产生的热量沿纵向（方向 的光束传播）到面冷却介质中。 这使得非线性晶体中的任何横向热梯度和伴随的去相位损耗最小化。 晶体可以干燥堆叠，具有非常小的充气间隙，浸入液体或凝胶中，与光学粘合剂粘合，光学接触或扩散粘合在一起形成复合晶体。 在非线性光学元件中产生的热量在与激光能量传播方向平行的方向上被动地传导到双折射晶体，然后传递到壳体。

公开(公告)号：US5974060A

公开(公告)日：1999-10-26

申请号：US225606

申请日：1999-01-05

申请人： Robert W. Byren ,  Robin A. Reeder

发明人： Robert W. Byren ,  Robin A. Reeder

IPC分类号： H01S3/10 ,  H01S3/23 ,  H01S3/098

CPC分类号： H01S3/10092 ,  H01S3/10076 ,  H01S3/2333

摘要： A laser crystal (25) having a relatively short optical length functions as a seed laser (1) and simultaneously establishes the wide separation between longitudinal modes. Pulsed operation causes multiple longitudinal modes to co-exist before competition acts to extinguish modes. The seed laser (1) is isolated from the relatively higher peak power output beam (4). Further, the injection seeded slave resonator (6) optical cavity length is adjusted by mechanical, electromechanical and/or electro-optical component(s) to harmonize the slave resonator optical cavity to the seed laser (1) optical cavity. A number of widely separated longitudinal modes are simultaneously output as a pulsed, high optical quality beam having a broad frequency range, short temporal coherence, and stable simultaneous operation of the several modes.

摘要翻译： 具有相对短的光学长度的激光晶体（25）用作种子激光器（1），并同时建立纵向模式之间的宽分离。 在竞争行为熄灭模式之前，脉冲操作会导致多种纵向模式共存。 种子激光器（1）与相对较高的峰值功率输出光束（4）隔离。 此外，注入种子从属谐振器（6）通过机械，机电和/或电光部件来调节光腔长度，以使从谐振器光腔与种子激光器（1）的光腔协调。 许多广泛分开的纵向模式被同时输出为具有宽频率范围，短时间相干性和几种模式的稳定同时操作的脉冲，高光学质量的光束。

公开(公告)号：US5636239A

公开(公告)日：1997-06-03

申请号：US441352

申请日：1995-05-15

申请人： Hans W. Bruesselbach ,  Robert W. Byren ,  Eric C. Fest ,  Steven C. Matthews ,  Stephen R. Klinger

发明人： Hans W. Bruesselbach ,  Robert W. Byren ,  Eric C. Fest ,  Steven C. Matthews ,  Stephen R. Klinger

IPC分类号： H01S3/04 ,  H01S3/042 ,  H01S3/06 ,  H01S3/091 ,  H01S3/093 ,  H01S3/0941 ,  H01S3/16 ,  H01S3/092

CPC分类号： H01S3/0941 ,  H01S3/042 ,  H01S3/0602 ,  H01S3/025 ,  H01S3/0407 ,  H01S3/061 ,  H01S3/0612 ,  H01S3/0617 ,  H01S3/0625 ,  H01S3/094084

摘要： A laser pump cavity assembly having a laser rod with a ground outer surface positioned concentrically within an annular jet sleeve which is, in turn, positioned concentrically within an annular outer sleeve. The outer sleeve is coated with a dielectric coating having slits therein arranged to receive focused optical pump radiation from respective laser diode arrays, the pump radiation being transmitted through the outer sleeve and jet sleeve to excite the laser rod. The jet sleeve is positioned to define cooling fluid chambers between the outer sleeve and the jet sleeve, and between the jet sleeve and the laser rod, and is provided with a series of jet holes for directing cooling fluid to impinge perpendicularly on the laser rod. The end faces of the jet sleeve and outer sleeve are further coated with dielectric material to enhance the efficiency of the device. The cooperating end caps which mount the outer sleeve, jet sleeve, and laser rod employ a number of advantageous self-aligning and sealing features.

摘要翻译： 一种激光泵腔体组件，其具有激光棒，该激光棒具有同心地定位在环形喷射套筒内的接地外表面，该环形射流套筒又一个同心地定位在环形外套筒内。 外套筒涂覆有其中布置有狭缝的电介质涂层，以从相应的激光二极管阵列接收聚焦光泵浦辐射，泵浦辐射通过外套管和射流套筒传递以激励激光棒。 喷射套筒定位成在外套筒和射流套筒之间以及射流套筒和激光棒之间限定冷却流体室，并且设置有一系列喷射孔，用于引导冷却流体垂直地照射在激光棒上。 喷射套管和外套筒的端面进一步涂覆介电材料，以提高装置的效率。 安装外套筒，喷射套筒和激光棒的协作端盖采用许多有利的自对准和密封特征。

公开(公告)号：US5272710A

公开(公告)日：1993-12-21

申请号：US941626

申请日：1992-09-08

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

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

IPC分类号： H01S3/04 ,  H01S3/042 ,  H01S3/05 ,  H01S3/16

CPC分类号： H01S3/042 ,  H01S3/025 ,  H01S3/0407 ,  H01S3/061 ,  H01S3/1611 ,  H01S3/1653

摘要： A laser structure that reduces thermally-induced mounting stress on low fracture strength solid-state laser rods. A transparent sleeve of relatively high strength optical material that has relatively high thermal conductivity is provided around the laser rod, and a thin layer of elastomer is provided between the laser material and the transparent sleeve. This arrangement of laser material, transparent sleeve, and elastomer allows sealing of a cooling fluid flow channel disposed around the laser/sleeve assembly using conventional means without applying stress directly to the laser rod material. This reduces the risk of fracturing the laser rod material due to thermal expansion near the seal and allows the laser to be operated at higher average power levels. The elastomer layer and high thermal conductivity sleeve efficiently conduct heat from the laser rod to the surrounding cooling liquid. This structure also minimizes damage to the surface of the strengthened laser rods due to handling and coolant erosion thereby preserving the thermal stress fracture resistance properties of the laser rod during transport, manufacturing assembly, operation, and maintenance.