公开(公告)号：US06697390B2

公开(公告)日：2004-02-24

申请号：US10061946

申请日：2002-02-01

申请人： James D. Kafka ,  Alan B. Petersen ,  Karl Markert

发明人： James D. Kafka ,  Alan B. Petersen ,  Karl Markert

IPC分类号： H01S310

CPC分类号： G02F1/3544 ,  G02F2001/3546 ,  H01S3/109 ,  H01S3/1611 ,  H01S3/1673 ,  H01S3/2308

摘要： A laser system includes a high reflector and an output coupler that define a laser oscillator, which produces a fundamental beam. A harmonic generator is positioned to receive at least a portion of the fundamental beam and produce a harmonic beam. The harmonic generator is configured to operate at a temperature selected to provide a least amount of change of a selected parameter of the harmonic beam for the longest period of time. Harmonic beam parameters can include the size and location of the harmonic beam waist, and the divergence of the harmonic beam.

摘要翻译： 激光系统包括高反射器和输出耦合器，其限定产生基波束的激光振荡器。 谐波发生器被定位成接收基波束的至少一部分并产生谐波束。 谐波发生器被配置为在所选择的温度下操作以在最长时间段内提供谐波束的选定参数的最小量的改变。 谐波束参数可以包括谐波束腰的大小和位置以及谐波束的发散。

公开(公告)号：US07292387B2

公开(公告)日：2007-11-06

申请号：US11332555

申请日：2006-01-12

申请人： Hanna J. Hoffman ,  David S. Spence ,  Alan B. Petersen ,  James D. Kafka

发明人： Hanna J. Hoffman ,  David S. Spence ,  Alan B. Petersen ,  James D. Kafka

IPC分类号： G02F1/35 ,  G02F2/02

CPC分类号： G02F1/35 ,  G02F1/3534 ,  G02F1/3544

摘要： Frequency conversion methods are taught wherein non-collinear phase matching configurations may be implemented in non-linear crystals used in three wave mixing processes such that the frequency conversion efficiency is enhanced through walk-off compensation while also maximizing conversion efficiency. The harmonic conversion techniques are especially applicable to sum frequency process, and in particular to third harmonic generation.

摘要翻译： 提出了变频方法，其中可以在三波混频处理中使用的非线性晶体中实现非共线相位匹配配置，使得通过离散补偿增强频率转换效率，同时最大化转换效率。 谐波转换技术特别适用于和频处理，特别适用于三次谐波生成。

公开(公告)号：US4974228A

公开(公告)日：1990-11-27

申请号：US269193

申请日：1988-11-08

申请人： Alan B. Petersen

发明人： Alan B. Petersen

IPC分类号： H01S3/032

CPC分类号： H01S3/0326

摘要： An ion laser is constructed with means for generating a magnetic confinement field operating in the cathode transition region of the laser. The magnetic confinement field is preferably generated by first and second magnetic windings, each axially aligned with the laser volume, but disposed so as to generate first and second magnetic fields which are of opposite polarity. The first and second magnetic fields of opposite polarity combine to create a region of zero axial magnetic field, which in a preferred embodiment is located substantially within the cathode transition region of the laser. In an alternate embodiment, the first and second magnetic fields are of the same polarity, and therefore generate a region of minimized axial magnetic field, preferably located substantially within the cathode transition region of the laser.

摘要翻译： 离子激光器被构造成用于产生在激光器的阴极过渡区域中操作的磁约束场的装置。 磁限制场优选地由第一和第二磁性绕组产生，每个磁绕轴与激光器体积轴向对准，但被设置成产生具有相反极性的第一和第二磁场。 相反极性的第一和第二磁场组合以产生零轴向磁场的区域，其在优选实施例中基本位于激光器的阴极过渡区域内。 在替代实施例中，第一和第二磁场具有相同的极性，因此产生最小的轴向磁场的区域，优选地位于激光器的阴极过渡区域内。

公开(公告)号：US4706256A

公开(公告)日：1987-11-10

申请号：US876559

申请日：1986-06-20

申请人： Shinan-Chur S. Sheng ,  Jeffrey Kaiser ,  Ralph R. Jacobs ,  Alan B. Petersen

发明人： Shinan-Chur S. Sheng ,  Jeffrey Kaiser ,  Ralph R. Jacobs ,  Alan B. Petersen

IPC分类号： H01S3/034

CPC分类号： H01S3/034

摘要： An endbell assembly operatively associated with a laser body includes a metal endbell component sealed to a crystalline endbell component which terminates with a crystalline optical component. The crystalline endbell and crystalline optical component are hermetically sealed without using a frit. This is achieved by polishing and a modified optical contacting technique whereby the optical component and crystalline endbell component are polished to a flatness of about 1/2 wavelength of light, placed in a contacting position and then thermally cycled at a temperature of about 400.degree.-500.degree. C. for about 1 to 10 hours, forming a substantially uniform unitary body. This seal is mechanically strong and minimizes the introduction of contaminants into the endbell assembly. In one embodiment, the crystalline endbell component is metallized and braze-sealed to the metal endbell component. In another embodiment, the two endbell components are hermetically sealed by modified optical contact and thermal cycling.

摘要翻译： 与激光器主体可操作地相关联的端耳组件包括密封到结晶端子部件的金属端塞部件，其以结晶光学部件终止。 晶体端耳和结晶光学元件在不使用玻璃料的情况下气密密封。 这通过抛光和修改的光学接触技术实现，由此将光学部件和结晶端耳部件抛光到约1/2波长的光的平面度，放置在接触位置，然后在约400℃的温度下热循环， 500℃约1至10小时，形成基本均匀的整体。 这种密封是机械坚固的，并且最小化将污染物引入到端耳组件中。 在一个实施例中，晶体端耳组件被金属化并且钎焊密封到金属端耳组件。 在另一个实施例中，两个端耳组件通过改进的光学接触和热循环气密密封。

公开(公告)号：US4677640A

公开(公告)日：1987-06-30

申请号：US779538

申请日：1985-09-24

申请人： Alan B. Petersen ,  Robert C. Rempel ,  Joseph B. Lastovka ,  David F. Head ,  Lee R. Carlson

发明人： Alan B. Petersen ,  Robert C. Rempel ,  Joseph B. Lastovka ,  David F. Head ,  Lee R. Carlson

IPC分类号： H01S3/034 ,  H01S3/08

CPC分类号： H01S3/034

摘要： A window assembly for a laser uses a uniaxial crystalline material such as quartz for the window, secured directly in a hard seal to a metal tubular end component. In order to avoid significant differential thermal expansion between the quartz window and the end component, the quartz crystal is cut in a Z-normal configuration, whereby the thermal expansion and other physical properties of the window are isotropic in the plane of the window. The ability to make a reliable direct seal to a metal component offsets any disadvantages of the Z-normal configuration thought to be controlling in the prior art. Through the disclosed method for assembling and mounting the window, reflection loses are reduced to a practical minimum comparable to that of any preferred conventional window orientation.

摘要翻译： 用于激光的窗户组件使用单轴结晶材料例如用于窗户的石英，直接固定在金属管状末端部件的硬密封件中。 为了避免石英窗和端部构件之间的显着差别热膨胀，石英晶体被切割成Z形正面构型，由此窗口的热膨胀和其它物理性质是各向同性的。 对金属部件进行可靠的直接密封的能力抵消了在现有技术中被认为是控制的Z-正常配置的任何缺点。 通过所公开的用于组装和安装窗户的方法，反射损失减小到与任何优选的常规窗口取向相当的实际最小值。

公开(公告)号：US4951285A

公开(公告)日：1990-08-21

申请号：US214747

申请日：1988-07-05

申请人： John L. Cole ,  David Wright ,  Alan B. Petersen ,  Shinan-Chur S. Sheng ,  Troy M. Artusy

发明人： John L. Cole ,  David Wright ,  Alan B. Petersen ,  Shinan-Chur S. Sheng ,  Troy M. Artusy

IPC分类号： H01S3/08 ,  H01S3/098

CPC分类号： H01S3/0805 ,  H01S3/08

摘要： A laser comprising a first mirror having a shape. The shape is generally spherical for typical lasers with the shape of the mirror being defined by the radius of curvature of a reflective surface on the mirror. A second mirror is provided mounted with the first to define a laser cavity. The cross-sectional sizes of the modes of oscillation within the laser cavity are defined by the shape of the first mirror. An aperture at a given location having a fixed cross-sectional size is mounted with the laser cavity. Alternatively, a laser bore which forms an effective aperture at a given location is used. A means is mounted with the first mirror for adjusting the shape of the first mirror so that the cross-sectional size of a selected mode at the given location matches the cross-sectional size of the aperture.

摘要翻译： 一种激光器，包括具有形状的第一反射镜。 典型的激光器的形状通常为球形，其反射镜的形状由反射镜上的反射表面的曲率半径限定。 提供第二反射镜，其安装有第一反射镜以限定激光腔。 激光腔内的振动模式的横截面尺寸由第一反射镜的形状决定。 具有固定横截面尺寸的给定位置处的孔安装有激光腔。 或者，使用在给定位置处形成有效孔径的激光孔。 安装有第一反射镜的装置用于调节第一反射镜的形状，使得给定位置处的选定模式的横截面尺寸与孔的横截面尺寸相匹配。

公开(公告)号：US5835513A

公开(公告)日：1998-11-10

申请号：US780495

申请日：1997-01-08

申请人： Jan-Willem Pieterse ,  Alan B. Petersen ,  Chris Pohalski ,  Emily Cheng ,  Randall Lane ,  William L. Nighan, Jr.

发明人： Jan-Willem Pieterse ,  Alan B. Petersen ,  Chris Pohalski ,  Emily Cheng ,  Randall Lane ,  William L. Nighan, Jr.

IPC分类号： G02F1/35 ,  G02F1/37 ,  H01S3/109 ,  H01S3/11 ,  H01S3/16 ,  H01S3/10

CPC分类号： G02F1/353 ,  G02F1/3534 ,  G02F1/37 ,  G02F2001/354 ,  G02F2201/16

摘要： A diode pumped laser includes a high reflector and an output coupler defining a resonator. The resonator includes a gain medium and a Q-switch and produces a fundamental beam. A first non-linear crystal is positioned extra-cavity of the resonator along a path of the fundamental beam. The first non-linear crystal generates a second harmonic beam from the fundamental beam. The first non-linear crystal is critically phased matched. A second non-linear crystal is portioned extra-cavity of the resonator along a path of the fundamental beam and the path of the second harmonic beam. The second non-linear crystal produces a third harmonic beam. The second non-linear crystal is critically phased matched.

摘要翻译： 二极管泵浦激光器包括高反射器和限定谐振器的输出耦合器。 谐振器包括增益介质和Q开关，并产生基波束。 第一非线性晶体沿着基波束的路径被定位在谐振器的外腔。 第一非线性晶体从基波束产生二次谐波。 第一个非线性晶体被严格分阶段匹配。 第二非线性晶体沿着基波束的路径和二次谐波束的路径被分成谐振器的外腔。 第二非线性晶体产生三次谐波束。 第二个非线性晶体是极其相位匹配的。

公开(公告)号：US5812583A

公开(公告)日：1998-09-22

申请号：US690037

申请日：1996-07-31

申请人： Alan B. Petersen

发明人： Alan B. Petersen

IPC分类号： H01S3/0941 ,  H01S3/091

CPC分类号： H01S3/09415 ,  H01S3/094073

摘要： A laser or laser amplifier apparatus has a diode pump source producing a polarized pump beam. A laser head includes a gain medium that produces an output beam. One or more optical fibers are coupled to the diode pump source and deliver the pump beam to the laser head. A depolarization device is coupled to the diode pump source, laser head or optical fiber and produces an depolarized pump beam. By depolarizing the output beam, movement, including rotation, of the pump source does not comprise the output beam produced from the laser head.

公开(公告)号：US4685110A

公开(公告)日：1987-08-04

申请号：US770717

申请日：1985-09-03

申请人： Gary W. DeBell ,  David L. Wright ,  Kenneth A. Ruddock ,  Alan B. Petersen ,  Lee R. Carlson ,  Marc K. von Gunten

发明人： Gary W. DeBell ,  David L. Wright ,  Kenneth A. Ruddock ,  Alan B. Petersen ,  Lee R. Carlson ,  Marc K. von Gunten

IPC分类号： G02B1/10 ,  H01S3/034 ,  H01S3/08

CPC分类号： H01S3/034 ,  G02B1/10

摘要： An optical component of a laser of the type including a hot gas plasma region, a cold gas region and producing large photon fluxed includes an optical element and a coating means on a surface of the optical element exposed to the photon fluxes. The coating means is comprised of a material adapted to minimize photoreduction of the optical element induced by exposure to the photon fluxes. Optical elements of the present invention include windows, birefringent plates, intra-cavity lenses, polarizers and mirrors.

摘要翻译： 包括热气体等离子体区域，冷气体区域和产生大光子的激光器的光学部件包括光学元件和暴露于光子通量的光学元件的表面上的涂覆装置。 涂层装置由适于最小化通过暴露于光子通量而引起的光学元件的光还原的材料构成。 本发明的光学元件包括窗口，双折射板，腔内透镜，偏振器和反射镜。

公开(公告)号：US06816536B2

公开(公告)日：2004-11-09

申请号：US10006997

申请日：2001-11-30

申请人： Karin Julliard ,  Steve Utter ,  Alan B. Petersen

发明人： Karin Julliard ,  Steve Utter ,  Alan B. Petersen

IPC分类号： H01S300

CPC分类号： G02B27/0006 ,  B65D81/266 ,  B65D85/38 ,  H01S3/025 ,  H01S3/027

摘要： A method and apparatus are provided for in situ protection of sensitive optical materials from alternation or damage due to exposure to trace atmospheric components, during shipping, storage or operation. The sensitive optical material is disposed within an enclosure adaptable to be substantially sealed against the external atmosphere. A container, enclosing a sink material absorbing trace atmospheric components, is coupled to the enclosure by a gas permeable surface, which allows fast diffusion of the trace atmospheric component inside the enclosure to the sink material.