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公开(公告)号：US07382818B2
公开(公告)日：2008-06-03
申请号：US10340878
申请日：2003-01-10
CPC分类号： H01S3/091 , H01S3/025 , H01S3/042 , H01S3/0606 , H01S3/0612 , H01S3/063 , H01S3/094084 , H01S3/09415 , H01S5/32341
摘要： A solid state pump cavity comprising a laser rod encased by diffusion bonding inside an outer cladding. The outer cladding provides the ability to efficiently conduct heat away from the laser rod. The outer cladding is also configured to absorb spontaneous laser radiation that would otherwise be re-amplified by the laser rod. Diffusion bonding of the outer cladding to the laser rod forms a seamless optical boundary between the outer cladding and the laser rod. An alternative embodiment of the pump cavity comprises multiple segments of laser rod and outer cladding assemblies coupled together with undoped sections that are diffusion bonded to the ends of the laser rod and outer cladding assemblies.
摘要翻译： 一种固态泵腔，包括在外包层内部由扩散结合包围的激光棒。 外包层提供有效地将热量远离激光棒的能力。 外包层也被配置成吸收自然的激光辐射，否则这些激光辐射将被激光棒重新放大。 外包层与激光棒的扩散接合在外包层和激光棒之间形成无缝光学边界。 泵腔的另一实施例包括激光棒和外包层组件的多个部分，其与扩散接合到激光棒和外包层组件的端部的未掺杂部分耦合在一起。
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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
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。
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3.发明授权公开(公告)号：US06967766B2
公开(公告)日：2005-11-22
申请号：US10425578
申请日：2003-04-29
CPC分类号： H01S3/2308 , H01S3/0606 , H01S3/0612 , H01S3/08095
摘要： A solid-state laser beam amplifier with integrated reflective surface. A rectangular slab gain medium receives a first portion of an input laser beam along a first zigzag reflection path within the slab. The gain medium also receives a second portion of the input laser beam that has been reflected from an integral reflective surface such that the two portions traverse the gain medium along complementary zigzag paths. The zigzag paths are defined by total internal reflection of the beam portions as they propagate through the gain medium slab. A similar reflective surface may be positioned relative to the exit end of the gain medium slab, which redirects all of the output beam portions in a parallel direction. The gain medium may be Ytterbium or neodymium doped yttrium aluminum garnet. The gain medium may be formed as a high aspect ratio rectangular slab and may be clad with sapphire. The reflective surfaces may function by total internal reflection or may employ a reflective material, such as a dielectric coating. A section of undoped medium may be applied to the entrance or exit end of the gain medium slab to control angles of incidence and refraction.
摘要翻译： 具有集成反射面的固态激光束放大器。 矩形板增益介质沿着板坯内的第一曲折反射路径接收输入激光束的第一部分。 增益介质还接收已经从整体反射表面反射的输入激光束的第二部分，使得两个部分沿着互补的之字形路径穿过增益介质。 锯齿形路径由梁部分传播通过增益介质板时的全内反射定义。 可以相对于增益介质板的出口端定位相似的反射表面，其将平行方向上的所有输出光束部分重定向。 增益介质可以是镱或钕掺杂的钇铝石榴石。 增益介质可以形成为高纵横比矩形板，并且可以用蓝宝石覆盖。 反射表面可以通过全内反射而起作用或者可以采用反射材料，例如电介质涂层。 可以将一部分未掺杂的介质施加到增益介质板的入口或出口端，以控制入射角和折射角。
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公开(公告)号：US07675958B2
公开(公告)日：2010-03-09
申请号：US11497824
申请日：2006-08-02
IPC分类号： H01S3/08
CPC分类号： H01S3/08059 , H01S3/061 , H01S3/07 , H01S3/08045 , H01S3/08072 , H01S3/0813 , H01S3/083 , H01S3/115 , H01S3/1618 , H01S3/1643 , H01S2301/20 , H01S2301/203
摘要： A lasing method including the steps of providing a laser resonator; utilizing birefringence compensation in said resonator whereby said resonator is induced to operate in a Laguerre-Gaussian higher order mode; and utilizing polarized outcoupling of lasing energy at said higher order mode from said resonator. In the illustrative application, the laser resonator is a high-power, solid-state laser resonator. In the specific embodiment, the inventive method further includes the step of changing an outcoupling preference for a non-degenerate high-order Laguerre-Gaussian mode. In one embodiment, the step of changing outcoupling preference includes the step of changing an outcoupling polarization. In another embodiment, the step of changing outcoupling preference includes the step of changing an orientation of a roof edge of a prism in the laser resonator. Lower order Laguerre modes are discouraged from appearing in an output of the resonator by adding loss at the center of the rod aperture of the resonator or detuning the orientation of a first or a second quarter-wave plate. In the illustrative embodiment, the gain lifetime of the resonator is longer than an interpulse period thereof.
摘要翻译： 一种激光方法，包括提供激光谐振器的步骤; 在所述谐振器中利用双折射补偿，由此所述谐振器被诱导以拉格尔 - 高斯高阶模式工作; 并且利用来自所述谐振器的所述高阶模式的激光能量的极化输出耦合。 在说明性应用中，激光谐振器是大功率固态激光谐振器。 在具体实施例中，本发明的方法还包括改变非退化高阶Laguerre-Gaussian模式的输出偏好的步骤。 在一个实施例中，改变输出耦合偏好的步骤包括改变输出耦合极化的步骤。 在另一个实施例中，改变输出耦合偏好的步骤包括改变激光谐振器中的棱镜的顶部边缘的方向的步骤。 不希望通过在谐振器的杆孔的中心处增加损耗或使第一或第二四分之一波片的取向失谐来降低低阶Laguerre模式出现在谐振器的输出中。 在说明性实施例中，谐振器的增益寿命长于其脉冲间隔。
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公开(公告)号：US5287901A
公开(公告)日：1994-02-22
申请号：US17277
申请日：1993-02-12
申请人： Steven C. Matthews
发明人： Steven C. Matthews
CPC分类号： B27L11/005
摘要： A knife blade clamp for a Carthage-Norman type of log chipper and having a substantially right triangular cross-sectional contour having an upper face, back face and hypotenuse surface, is provided with a series of slots on its back face. The slots communicate between an elongated depression on the back face and the hypotenune surface. By virtue of the series of slots, there is less accumulation of fine dust adjacent the back face which would thwart the removability of the associated knife for servicing.
摘要翻译： 用于迦太基 - 诺曼型对数切片机的刀片夹具具有具有上表面，背面和斜边表面的基本上正交的三角形横截面轮廓，在其背面上设置有一系列狭槽。 狭槽在背面的细长凹陷和斜边表面之间通信。 由于这些系列的槽，靠近背面的细灰尘堆积较少，这将阻碍相关刀的可拆卸性进行维修。
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公开(公告)号：US20100020833A1
公开(公告)日：2010-01-28
申请号：US11497824
申请日：2006-08-02
CPC分类号： H01S3/08059 , H01S3/061 , H01S3/07 , H01S3/08045 , H01S3/08072 , H01S3/0813 , H01S3/083 , H01S3/115 , H01S3/1618 , H01S3/1643 , H01S2301/20 , H01S2301/203
摘要： A lasing method including the steps of providing a laser resonator; utilizing birefringence compensation in said resonator whereby said resonator is induced to operate in a Laguerre-Gaussian higher order mode; and utilizing polarized outcoupling of lasing energy at said higher order mode from said resonator. In the illustrative application, the laser resonator is a high-power, solid-state laser resonator. In the specific embodiment, the inventive method further includes the step of changing an outcoupling preference for a non-degenerate high-order Laguerre-Gaussian mode. In one embodiment, the step of changing outcoupling preference includes the step of changing an outcoupling polarization. In another embodiment, the step of changing outcoupling preference includes the step of changing an orientation of a roof edge of a prism in the laser resonator. Lower order Laguerre modes are discouraged from appearing in an output of the resonator by adding loss at the center of the rod aperture of the resonator or detuning the orientation of a first or a second quarter-wave plate. In the illustrative embodiment, the gain lifetime of the resonator is longer than an interpulse period thereof.
摘要翻译： 一种激光方法，包括提供激光谐振器的步骤; 在所述谐振器中利用双折射补偿，由此所述谐振器被诱导以拉格尔 - 高斯高阶模式工作; 并且利用来自所述谐振器的所述高阶模式的激光能量的极化输出耦合。 在说明性应用中，激光谐振器是大功率固态激光谐振器。 在具体实施例中，本发明的方法还包括改变非退化高阶Laguerre-Gaussian模式的输出偏好的步骤。 在一个实施例中，改变输出耦合偏好的步骤包括改变输出耦合极化的步骤。 在另一个实施例中，改变输出耦合偏好的步骤包括改变激光谐振器中的棱镜的顶部边缘的方向的步骤。 不希望通过在谐振器的杆孔的中心处增加损耗或使第一或第二四分之一波片的取向失谐来降低低阶Laguerre模式出现在谐振器的输出中。 在说明性实施例中，谐振器的增益寿命长于其脉冲间隔。
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公开(公告)号：US6101022A
公开(公告)日：2000-08-08
申请号：US83600
申请日：1998-05-22
申请人： Tzeng S. Chen , Steven C. Matthews
发明人： Tzeng S. Chen , Steven C. Matthews
IPC分类号： G02F1/39
CPC分类号： G02F1/39
摘要： An optical parametric oscillator comprising two meniscus mirrors disposed on opposite sides of a nonlinear medium that forms a confocal unstable resonator. A reduced-to-practice embodiment uses concave-convex mirrors in a confocal arrangement disposed on opposite sides of a KTP crystal used as the nonlinear medium. The optical parametric oscillator and confocal unstable resonator of the present invention exhibits improved beam divergence angles.
摘要翻译： 光学参量振荡器包括设置在形成共焦不稳定谐振器的非线性介质的相对侧上的两个弯液面镜。 实施例的实施例使用设置在用作非线性介质的KTP晶体的相对侧上的共焦排列中的凹凸镜。 本发明的光参量振荡器和共焦不稳定谐振器表现出改进的光束发散角。
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公开(公告)号：US5363391A
公开(公告)日：1994-11-08
申请号：US874270
申请日：1992-04-24
CPC分类号： G02F1/37 , H01S3/0401 , H01S3/042 , H01S3/0405
摘要： A technique for passively removing heat from an optical element in a laser system through its optically transmissive faces. Heat is removed by way of optically transmissive heat sinks or other heat conducting media disposed adjacent the optically transmissive surfaces of the optical element. Heat is transferred out of the optical element in a direction parallel to the direction of propagation of energy, thus minimizing problems associated with thermal gradients. Devices employing optical elements such as nonlinear frequency conversion crystals and laser crystals may utilize the heat management approach of the present invention to achieve better performance. Heat is transferred to the heat conducting media by direct contact, or through narrow gas-filled gaps disposed between the optical element and the heat conducting media.
摘要翻译： 一种用于通过其光学透射面从激光系统中的光学元件被动地去除热量的技术。 通过光学透射散热器或邻近光学元件的光学透射表面设置的其它导热介质来除去热量。 热量在与能量传播方向平行的方向从光学元件传出，从而最小化与热梯度有关的问题。 使用诸如非线性频率转换晶体和激光晶体的光学元件的器件可以利用本发明的热管理方法来实现更好的性能。 通过直接接触或通过设置在光学元件和导热介质之间的狭窄的气体填充间隙将热传递到导热介质。
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9.发明授权Tilted lens imager in a laser amplifier/oscillator and method utilizing same 失效激光放大器/振荡器中的倾斜透镜成像器及其利用方法
公开(公告)号：US5228051A
公开(公告)日：1993-07-13
申请号：US808147
申请日：1991-12-16
申请人： Steven C. Matthews
发明人： Steven C. Matthews
CPC分类号： H01S3/10076 , H01S3/2316 , H01S3/2333
摘要： Lenses (30', 32') are orthogonally tilted with respect to one another in a telescope to provide imaging for an amplifier-phase conjugate mirror (PCM)(10) in a laser oscillator/amplifier (12). This mutually orthogonal tilting avoids the problem of air breakdown which occurs when the laser energy is otherwise focused at a single point and thus avoids the need to use a vacuum cell to suppress the sparking at the telescope's focus. An adjustment of the tilting of one lens (32') with respect to the other lens (30') also avoids astigmatism.
摘要翻译： 透镜（30'，32'）在望远镜中相对于彼此正交倾斜，以在激光振荡器/放大器（12）中为放大器相位共轭反射镜（PCM）（10）提供成像。 这种相互正交的倾斜避免了当激光能量另外聚焦在单个点处时发生的空气击穿的问题，并且因此避免了使用真空电池来抑制望远镜焦点处的火花的需要。 一个透镜（32'）相对于另一个透镜（30'）的倾斜的调整也避免了散光。
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