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1. 发明授权

US07995631B2 Solid-state laser with spatially-tailored active ion concentration using valence conversion with surface masking and method 有权
标题翻译：具有空间定制的活性离子浓度的固体激光器，其使用经表面掩蔽和方法的价态转换
公开(公告)号：US07995631B2
公开(公告)日：2011-08-09
申请号：US11404338
申请日：2006-04-14
申请人： David S. Sumida , Robert W. Byren , Michael Ushinsky
发明人： David S. Sumida , Robert W. Byren , Michael Ushinsky
IPC分类号： H01S3/16
CPC分类号： H01S3/0612 , H01S3/061 , H01S3/1618 , H01S3/1643
摘要： A material having a surface and a dopant in the material distributed whereby the material has a spatially variant optical flux density profile. In accordance with the invention, tailored non-uniform gain profiles within a Yb:YAG laser component (rod, slab, disc, etc.) are achieved by a spatial material modification in the spatially masked pre-forms. High temperature-assisted reduction leads to the coordinate-dependent gain profiles, which are controlled by the topology of the deposited solid masks. The gain profiles are obtained by reducing the charge state of the laser-active trivalent Yb3+ ions into inactive divalent Yb2+ ions. This valence conversion process is driven by mass transport of ions and oxygen vacancies. These processes, in turn, affect the dopant distribution throughout the surface and bulk laser crystal.
摘要翻译：在材料中具有表面和掺杂剂的材料被分配，由此材料具有空间上不同的光通量密度分布。根据本发明，Yb：YAG激光器部件（棒，板，盘等）中的定制的不均匀增益分布通过在空间掩蔽的预成型件中的空间材料修改来实现。高温辅助还原导致坐标依赖增益曲线，其由沉积的固体掩模的拓扑结构来控制。通过将激光活性三价Yb3 +离子的电荷状态降低成无活性的二价Yb2 +离子获得增益曲线。该价电子转化过程由离子和氧空位的质量传递驱动。这些过程又影响整个表面和体激光晶体的掺杂剂分布。

2. 发明授权

US06996137B2 Solid-state devices with radial dopant valence profile 有权
标题翻译：具有径向掺杂剂价态的固态器件
公开(公告)号：US06996137B2
公开(公告)日：2006-02-07
申请号：US10119462
申请日：2002-08-06
申请人： Robert W. Byren , David S. Sumida
发明人： Robert W. Byren , David S. Sumida
IPC分类号： H01S3/11 , H01S3/16
CPC分类号： H01S3/113 , H01S3/061 , H01S3/0617 , H01S3/094084 , H01S3/0941 , H01S3/1623 , H01S3/1643 , H01S3/1681
摘要： A solid state, laser light control device (20, 30) and material (10), and methods of producing same. The device (20, 30) and material (10) consist essentially of a host material (14) which contains: a dopant species (16) at a first valence state (a), the concentration of which increases with distance from the surface (18); and the same dopant species (16) at a second valence state (b), the concentration which decreases with distance from the surface (18). The method comprises the steps of: obtaining a doped solid state material (14); exposing the solid state material (14) to elevated temperature, for a period of time, in an oxidizing or reducing atmosphere. The elevated temperature and time of exposure are selected to change the valence state (a) of the dopant (16) in direct proportion to distance from the surface (18) of the solid state material (16). What is thereby produced is a solid state device (20, 30) in which the concentration of the dopant 16 at the second valence state (b) decreases with radius, the concentration of the dopant (16) at the first valence state (a) increases with radius, and the sum of these concentrations remains constant.
摘要翻译：固态激光控制装置（20,30）和材料（10）及其制造方法。装置（20,30）和材料（10）基本上由主体材料（14）组成，其包含：处于第一价态（a）的掺杂剂物质（16），其浓度随距离表面的距离而增加 18）; 和与第二价态（b）相同的掺杂剂物质（16），其浓度随距表面18的距离而减小。该方法包括以下步骤：获得掺杂固体材料（14）; 在氧化或还原气氛中将固态材料（14）暴露于升高的温度一段时间。选择升高的温度和曝光时间以与固态材料（16）的表面（18）的距离成正比的方式改变掺杂剂（16）的化合价态（a）。由此产生的是固态装置（20,30），其中第二价态（b）的掺杂剂16的浓度随着半径而减小，掺杂剂（16）处于第一价态（a）的浓度，半径增加，这些浓度的总和保持不变。

3. 发明授权

US08189634B2 Method of manufacturing a laser gain medium having a spatially variable gain profile 有权
标题翻译：制造具有空间可变增益曲线的激光增益介质的方法
公开(公告)号：US08189634B2
公开(公告)日：2012-05-29
申请号：US13191775
申请日：2011-07-27
申请人： David S. Sumida , Robert W. Byren , Michael Ushinsky
发明人： David S. Sumida , Robert W. Byren , Michael Ushinsky
IPC分类号： H01S3/16
CPC分类号： H01S3/0612 , H01S3/061 , H01S3/1618 , H01S3/1643
摘要： Method of manufacturing a laser medium with a material having a surface and a dopant in the material distributed whereby the material has a spatially variant optical flux density profile uses tailored non-uniform gain profiles within a Yb:YAG laser component (rod, slab, disc, etc.) achieved by a spatial material modification in the spatially masked pre-forms. High temperature-assisted reduction leads to the coordinate-dependent gain profiles, which are controlled by the topology of the deposited solid masks. The gain profiles are obtained by reducing the charge state of the laser-active trivalent Yb3+ ions into inactive divalent Yb2+ ions. This valence conversion process is driven by mass transport of ions and oxygen vacancies. These processes, in turn, affect the dopant distribution throughout the surface and bulk laser crystal. By reducing proportionally more Yb3+ ions at the unmasked areas of component, than in the masked areas, the coordinate-dependent or spatially-controlled gain profiles are achieved. The material can be used for the fabrication of laser rods, slabs, etc. with various concentrations and spatial localizations of dopants.
摘要翻译：在具有空间变化的光通量密度分布的材料中制造具有表面和掺杂剂的材料的激光介质的制造方法使用Yb：YAG激光器部件（棒，板，盘）内的定制的不均匀增益分布，等等）通过在空间掩蔽的预形式中的空间材料修改来实现。高温辅助还原导致坐标依赖增益曲线，其由沉积的固体掩模的拓扑结构来控制。通过将激光活性三价Yb3 +离子的电荷状态降低成无活性的二价Yb2 +离子获得增益曲线。该价电子转化过程由离子和氧空位的质量传递驱动。这些过程又影响整个表面和体激光晶体的掺杂剂分布。通过在组件的未屏蔽区域上比在掩蔽区域中成比例地减少更多的Yb3 +离子，实现了坐标依赖或空间控制的增益曲线。该材料可用于制造具有各种浓度和掺杂剂空间定位的激光棒，板坯等。

4. 发明授权

US5974061A Laser pump cavity apparatus with improved thermal lensing control, cooling, and fracture strength and method 失效
$Laser pump cavity apparatus with improved thermal lensing control, cooling, and fracture strength and method$
标题翻译：激光泵腔设备具有改进的热透镜控制，冷却和断裂强度和方法
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

5. 发明授权

US06330256B1 Method and apparatus for non-dispersive face-cooling of multi-crystal nonlinear optical devices 有权
标题翻译：多晶非线性光学器件非分散面冷却方法和装置
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。

6. 发明授权

US5272710A Stress-free mounting and protection of liquid-cooled solid-state laser media 失效
标题翻译：无压力安装和保护液冷固体激光介质
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.

7. 发明授权

US08780182B2 Imaging system and method using partial-coherence speckle interference tomography 有权
标题翻译：使用部分相干散斑干涉断层扫描的成像系统和方法
公开(公告)号：US08780182B2
公开(公告)日：2014-07-15
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 , G06K9/00
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。

8. 发明授权

US08660324B2 Textured pattern sensing using partial-coherence speckle interferometry 有权
标题翻译：使用部分相干散斑干涉测量的纹理图案感测
公开(公告)号：US08660324B2
公开(公告)日：2014-02-25
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
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。

9. 发明授权

US08514284B2 Textured pattern sensing and detection, and using a charge-scavenging photodiode array for the same 有权
标题翻译：纹理图案感测和检测，并使用电荷清除光电二极管阵列相同
公开(公告)号：US08514284B2
公开(公告)日：2013-08-20
申请号：US12640525
申请日：2009-12-17
申请人： Robert W. Byren , Darin S. Williams
发明人： Robert W. Byren , Darin S. Williams
IPC分类号： H04N7/18 , G06K9/00
CPC分类号： G01S17/89 , G01S7/4816 , G01S17/105 , G06K9/00033
摘要： A system for imaging a textured surface comprising includes a photoreceptor array having: at least a first photoreceptor and a second photoreceptor, each configured to receive electromagnetic radiation reflected from the textured surface and to generate a signal corresponding thereto; wherein the photoreceptor array is configured to detect an image of the textured surface based on the relative difference between the time of arrival of the signals from the first and second photoreceptors. Methods for imaging a textured surface and fabricating a photoreceptor array structure for imaging a textured surface are also provided.
摘要翻译：一种用于对纹理表面进行成像的系统，包括：感光体阵列，具有：至少第一感光体和第二感光体，每个被配置为接收从纹理化表面反射的电磁辐射并产生与其对应的信号; 其中所述感光体阵列被配置为基于来自所述第一和第二光感受器的信号的到达时间之间的相对差异来检测所述纹理表面的图像。还提供了用于对纹理表面进行成像并制造用于成像纹理表面的感光体阵列结构的方法。

10. 发明申请

US20080308716A1 Automatic photodiode biasing circuit 有权
标题翻译：自动光电二极管偏置电路
公开(公告)号：US20080308716A1
公开(公告)日：2008-12-18
申请号：US12228564
申请日：2008-08-14
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 biasing circuit for a photodiode. The novel biasing circuit includes a first system for setting a reference gain threshold, a second system for setting an operating gain threshold, and a third system for adjusting a bias of the photodiode until a ratio of the operating gain threshold to the reference gain threshold is equal to a predetermined factor Z. In an illustrative embodiment, the reference gain threshold corresponds to a given probability of an output of the photodiode crossing the reference gain threshold when the photodiode is operating at a reference gain bias, and the operating gain threshold corresponds to a given probability of the photodiode output crossing the operating gain threshold when the photodiode is operating at an operating gain bias. The predetermined factor Z is a ratio of noise at a desired operating gain of the photodiode to noise at the reference gain of the photodiode.
摘要翻译：用于光电二极管的偏置电路。新型偏置电路包括用于设定参考增益阈值的第一系统，用于设定运行增益阈值的第二系统和用于调整光电二极管的偏置的第三系统，直到运行增益阈值与参考增益阈值的比率为等于预定的因子Z.在说明性实施例中，当光电二极管以参考增益偏置工作时，参考增益阈值对应于光电二极管与参考增益阈值的输出的给定概率，并且操作增益阈值对应于当光电二极管工作在工作增益偏置时，光电二极管输出的给定概率与工作增益阈值相交。预定因子Z是在光电二极管的参考增益下，光电二极管的期望工作增益的噪声与噪声的比值。

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