公开(公告)号：US07675673B2

公开(公告)日：2010-03-09

申请号：US12055943

申请日：2008-03-26

申请人： Eric R. Mueller

发明人： Eric R. Mueller

IPC分类号： G02F1/33

CPC分类号： B23K26/0676 ,  B23K26/0622 ,  B23K26/067 ,  B23K26/0673 ,  G02B6/4296

摘要： An output beam from a laser is directed into an acousto-optic cell. The laser beam includes repeated sequences of two or more pulses. The acousto-optic cell is sequentially driven by RF voltages at two or more frequencies. A portion of the laser output beam is diffracted by the acousto-optic cell at two or more different angles to the laser output beam. This provides two or more secondary beams. One of the secondary beams includes only the first pulses of the sequences; the other includes only the second pulses of the sequences. The duration of the pulses in the laser beam is controlled to control time-averaged power in the secondary beams.

摘要翻译： 来自激光器的输出光束被引导到声光电池中。 激光束包括两个或多个脉冲的重复序列。 声光单元由两个或更多个频率的RF电压依次驱动。 激光输出光束的一部分被声光单元以与激光输出光束两个或多个不同的角度衍射。 这提供了两个或更多个次光束。 次级光束中的一个仅包括序列的第一脉冲; 另一个仅包括序列的第二个脉冲。 控制激光束中的脉冲的持续时间以控制次级光束中的时间平均功率。

公开(公告)号：US07756186B2

公开(公告)日：2010-07-13

申请号：US12033619

申请日：2008-02-19

申请人： Peter P. Chenausky ,  Lanny Laughman ,  Eric R. Mueller ,  Leon A. Newman ,  Vernon A. Seguin ,  Christian J. Shackleton

发明人： Peter P. Chenausky ,  Lanny Laughman ,  Eric R. Mueller ,  Leon A. Newman ,  Vernon A. Seguin ,  Christian J. Shackleton

IPC分类号： H01S3/08

CPC分类号： H01S3/0818 ,  H01S3/0315 ,  H01S3/2232

摘要： Through the use of a relatively inexpensive third mirror on a novel folded hybrid unstable resonator configuration, the optimum output coupling for a given laser design can be explored quickly and easily with a minimum of intracavity mirror alignment. No changes in either the radii of curvature of the three cavity optics or their spacing are required for this exploration. In addition to providing techniques for purposefully and systematically introducing mirror edge effects or avoiding edges effects altogether, the invention provides that output beams of different width can be advantageously explored in a relatively simple and straightforward manner. The invention provides that higher geometric magnification cavity designs may be made compatible with low diffraction output coupling in a configuration that uses only three totally reflecting optics.

摘要翻译： 通过在新颖的折叠混合不稳定谐振器结构上使用相对便宜的第三反射镜，可以用最小的腔内反射镜对准来快速且容易地探索给定激光设计的最佳输出耦合。 这种探索需要三腔光学器件的曲率半径或其间距的变化。 除了提供有意和系统地引入镜面边缘效果或完全避免边缘效应的技术之外，本发明还提供了以相对简单和直接的方式有利地探索不同宽度的输出光束。 本发明提供了在仅使用三个全反射光学器件的构造中，较高的几何放大空腔设计可以与低衍射输出耦合兼容。

公开(公告)号：US20090244691A1

公开(公告)日：2009-10-01

申请号：US12055943

申请日：2008-03-26

申请人： Eric R. Mueller

发明人： Eric R. Mueller

IPC分类号： G02F1/33 ,  H01S3/13

CPC分类号： B23K26/0676 ,  B23K26/0622 ,  B23K26/067 ,  B23K26/0673 ,  G02B6/4296

摘要： An output beam from a laser is directed into an acousto-optic cell. The laser beam includes repeated sequences of two or more pulses. The acousto-optic cell is sequentially driven by RF voltages at two or more frequencies. A portion of the laser output beam is diffracted by the acousto-optic cell at two or more different angles to the laser output beam. This provides two or more secondary beams. One of the secondary beams includes only the first pulses of the sequences; the other includes only the second pulses of the sequences. The duration of the pulses in the laser beam is controlled to control time-averaged power in the secondary beams.

摘要翻译： 来自激光器的输出光束被引导到声光电池中。 激光束包括两个或多个脉冲的重复序列。 声光单元由两个或更多个频率的RF电压依次驱动。 激光输出光束的一部分被声光单元以与激光输出光束两个或多个不同的角度衍射。 这提供了两个或更多个次光束。 次级光束中的一个仅包括序列的第一脉冲; 另一个仅包括序列的第二个脉冲。 控制激光束中的脉冲的持续时间以控制次级光束中的时间平均功率。

公开(公告)号：US07378658B2

公开(公告)日：2008-05-27

申请号：US11512693

申请日：2006-08-30

申请人： Eric R. Mueller ,  Raymond Michaud

发明人： Eric R. Mueller ,  Raymond Michaud

IPC分类号： G01N21/00

CPC分类号： G01J3/42 ,  G01N21/3563 ,  G01N21/3581 ,  G01N2201/10 ,  G01S13/887

摘要： A portal for security screening of transport passengers includes a THz trans-receiver. In one example of the portal, the trans-receiver includes a small-spot, reflective scanning arrangement including a single detector in a heterodyne receiver configuration. In another example, the trans-receiver includes a large-beam reflective scanning arrangement with the trans-receiver in a synthetic aperture radar (SAR) configuration.

摘要翻译： 运输乘客的安全检查门户包括一个THz转接头。 在门户的一个示例中，转接收器包括小外点反射扫描装置，其包括外差接收器配置中的单个检测器。 在另一示例中，转接收器包括具有合成孔径雷达（SAR）配置中的反式接收器的大波束反射扫描装置。

公开(公告)号：US20080002751A1

公开(公告)日：2008-01-03

申请号：US11481887

申请日：2006-07-06

申请人： Gongxue Hua ,  Vernon Seguin ,  Leon A. Newman ,  Eric R. Mueller

发明人： Gongxue Hua ,  Vernon Seguin ,  Leon A. Newman ,  Eric R. Mueller

IPC分类号： H01S3/11 ,  H01S3/22

CPC分类号： H01S3/2232 ,  H01S3/08054 ,  H01S3/08095 ,  H01S3/0813 ,  H01S3/0817 ,  H01S3/10046 ,  H01S3/115

摘要： A thin film polarizer (TFP) and a half-wave CdTe electro-optical crystal are utilized to achieve a higher damage threshold in Q-switching CO2 lasers for material processing applications. Half-wave CdTe electro-optical modulators can be used without the arcing and corona problems typically associated with the higher drive voltage by placing low dielectric constant insulators (such as BeO) around the CdTe crystal. Doubling the voltage placed across a CdTe crystal enables the crystal to function as a half-wave phase retarder EO switch with the same dimensions as a crystal functioning as a quarter-wave EO modulator. These half-wave EO switches can be used with TFPs to shape the output pulses, as well as to direct alternate pulses of repetitively pulsed super pulsed slab lasers to alternate scanners, thereby doubling the output of laser hole drilling systems.

摘要翻译： 利用薄膜偏振器（TFP）和半波长的CdTe电光晶体来实现用于材料加工应用的Q开关CO 2激光器的更高的损伤阈值。 通常在CdTe晶体周围放置低介电常数绝缘体（如BeO），可以使用半波长的CdTe电光调制器，而不会产生通常与较高驱动电压相关的电弧和电晕问题。 将跨越CdTe晶体的电压加倍使晶体能够作为与作为四分之一波长EO调制器的晶体相同尺寸的半波相位延迟器EO开关。 这些半波EO开关可与TFP一起使用，以形成输出脉冲，以及将重复脉冲的超脉冲平板激光器的交替脉冲引导到交替的扫描仪，从而使激光钻孔系统的输出加倍。

公开(公告)号：US06563622B2

公开(公告)日：2003-05-13

申请号：US09929656

申请日：2001-08-14

申请人： Eric R. Mueller ,  Anthony J. DeMaria

发明人： Eric R. Mueller ,  Anthony J. DeMaria

IPC分类号： H04B1004

CPC分类号： H04B10/505 ,  G02F1/3534 ,  G02F2203/13

摘要： A communications transmission system and method modulates a radiation source at higher rates for either fiber optic telecommunication systems or for digital electrical or optical switches associated with computer routers or servers. A first source provides a carrier signal; a modulator receives the carrier signal and an information signal to generate a modulated carrier signal. A second source provides a transmission signal; and a signal mixer receives the modulated carrier signal and the transmission signal to generate a frequency shifted transmission signal. The transmission system increases the amount of analog or digital information that can be transmitted over a communications network. The modulated carrier signal and the frequency shifted transmission signal may be filtered.

摘要翻译： 通信传输系统和方法对于光纤通信系统或与计算机路由器或服务器相关联的数字电子或光学交换机以更高的速率调制辐射源。 第一源提供载波信号; 调制器接收载波信号和信号信号以产生经调制的载波信号。 第二源提供传输信号; 并且信号混合器接收调制载波信号和发送信号以产生频移发送信号。 传输系统增加可以通过通信网络传输的模拟或数字信息的数量。 调制载波信号和频移发射信号可以被滤波。

公开(公告)号：US06192061B1

公开(公告)日：2001-02-20

申请号：US09039036

申请日：1998-03-13

申请人： Richard A. Hart ,  John T. Kennedy ,  Eric R. Mueller ,  Leon A. Newman

发明人： Richard A. Hart ,  John T. Kennedy ,  Eric R. Mueller ,  Leon A. Newman

IPC分类号： H01S3097

CPC分类号： H01S3/0315 ,  H01S3/038 ,  H01S3/076

摘要： A clamping device for an RF excited laser is provided which reduces stress on ceramic components and also is less expensive than existing clamping devices. The RF excited laser lacking an electrode over the waveguide channel intersection regions. Ceramic covers are provided over a portion of these channel intersection regions to reduce plasma build up. Increased power is achieved by adding a fourth channel to a conventional waveguide to form a ring resonator. The optical component mount uses radial compressive forces to hold the optical component to a post, thereby preventing the face of the optical component from being distorted. Mirror mounts are also configured to allow more mirrors to be mounted at each end of the laser. The waveguide channel of the RF excited laser having a U-shaped cross section and an aspect ratio grater than one-to-one, which improves laser performance. A beam redirection device allows the laser head to serve as a mounting surface for other optical components. Anamorphic beam expander prisms are provided to charge the laser beam diameter and recollimate the laser beam. Relief holes or slots are provided in the waveguide to relieve pressure build-up with the channels on the waveguide.

摘要翻译： 提供了用于RF激发激光器的夹紧装置，其减小了陶瓷部件的应力，并且也比现有的夹紧装置便宜。 RF激光激光器在波导管道交叉区域上缺少电极。 陶瓷盖设置在这些通道交叉区域的一部分上以减少等离子体积聚。 通过向常规波导添加第四通道以形成环形谐振器来实现增加的功率。 光学部件安装件使用径向压缩力将光学部件保持在柱上，从而防止光学部件的表面变形。 镜座也配置为允许在激光的每一端安装更多的镜子。 RF激光激光器的波导通道具有U形横截面和纵横比格栅比一对一，这提高了激光性能。 光束重定向装置允许激光头用作其他光学部件的安装表面。 提供变形光束扩展器棱镜以对激光束直径进行充电并使激光束再振动。 在波导管中设有泄压孔或槽，以便利用波导管上的通道来缓解压力积聚。

公开(公告)号：US08129684B2

公开(公告)日：2012-03-06

申请号：US11085859

申请日：2005-03-22

申请人： Eric R. Mueller

发明人： Eric R. Mueller

IPC分类号： G01J5/02

CPC分类号： G01N21/3581 ,  G01N21/3563 ,  G01N2021/1793 ,  G01S13/887

摘要： A THz-frequency heterodyne imaging method is used to remotely detect objects concealed in or under a person's clothing. One THz-frequency beam is scanned over a person being examined. A portion of the beam penetrates the persons clothing and is reflected by an object concealed under the person's clothing. The reflected portion the beam is mixed with another beam of THz-frequency radiation having a different frequency to provide a signal having an intermediate frequency (IF) including image data representative of the concealed object.

摘要翻译： 使用THz频率外差成像方法来远程检测隐藏在人的衣服中或其下的物体。 在被检查的人员上扫描一个THz频率波束。 梁的一部分穿透人的衣服，并被隐藏在人的衣服下的物体反射。 光束的反射部分与具有不同频率的另一束THz频率辐射混合，以提供具有代表隐藏对象的图像数据的具有中频（IF）的信号。

公开(公告)号：US07687773B2

公开(公告)日：2010-03-30

申请号：US12214760

申请日：2008-06-20

申请人： Peter H. Siegel ,  Robert Dengler ,  Eric R. Mueller

发明人： Peter H. Siegel ,  Robert Dengler ,  Eric R. Mueller

IPC分类号： G01J5/02

CPC分类号： G01N21/3581

摘要： The present invention relates to sub-millimeter wave frequency heterodyne imaging systems. More specifically, the present invention relates to a sub-millimeter wave frequency heterodyne detector system for imaging the magnitude and phase of transmitted power through or reflected power off of mechanically scanned samples at sub-millimeter wave frequencies.

摘要翻译： 本发明涉及亚毫米波频率外差成像系统。 更具体地说，本发明涉及一种亚毫米波频率外差检测器系统，用于通过机械扫描的样本在亚毫米波频率下对发射功率的大小和相位进行成像或反射功率成像。

公开(公告)号：US07545838B2

公开(公告)日：2009-06-09

申请号：US11810090

申请日：2007-06-04

申请人： Joel Fontanella ,  David E. Brown ,  Eric R. Mueller ,  Raymond Michaud

发明人： Joel Fontanella ,  David E. Brown ,  Eric R. Mueller ,  Raymond Michaud

IPC分类号： H01S3/121 ,  H01S3/10

CPC分类号： H01S3/2383 ,  B23K26/0604 ,  B23K26/0738 ,  H01S3/005 ,  H01S3/10 ,  H01S3/105 ,  H01S3/2232 ,  H01S5/0652 ,  H01S5/4012

摘要： A method of combining beams from a plurality of laser resonators includes frequency modulating the output of each of the lasers with one or more of the lasers frequency modulated out-of-phase with the others. The frequency modulated beams are directed along parallel spaced-apart paths and overlap in a plane along the paths to form a combined beam having a flat-topped intensity distribution.

摘要翻译： 组合来自多个激光谐振器的光束的方法包括使用与其它激光器频率调制的不同相位的一个或多个激光器对每个激光器的输出进行频率调制。 频率调制光束沿着平行的间隔开的路径被引导并沿着路径在平面中重叠以形成具有平顶强度分布的组合光束。