公开(公告)号：WO2006088802A3

公开(公告)日：2006-12-21

申请号：PCT/US2006005057

申请日：2006-02-14

Applicant: BOEING CO ,  HOLLY SANDOR ,  VETROVEC JAN

Inventor： HOLLY SANDOR ,  VETROVEC JAN

IPC: H01Q23/00 ,  H01Q9/16 ,  H01Q21/00

CPC classification number: H01Q21/062 ,  F41H11/136 ,  G01N21/3581 ,  H01Q21/00 ,  H01Q23/00

Abstract: Methods and systems for generating and imaging THz electromagnetic radiation using a composite dipole array (150) made up of novel structures of non-linear dipole strings with dual frequency resonances for frequency up conversion and frequency down conversion are disclosed. THz electromagnetic radiation resulting from the frequency down conversion process can be used as an illumination source for imaging, as a carrier for communications, or as an energy source for spectroscopy, for example. Optical electromagnetic radiation resulting from the frequency up conversion process can be used to form images from THz electromagnetic radiation for contraband detection, guidance systems, and medical applications, for example.

Abstract translation: 公开了使用由用于上变频和下变频的双频谐振的非线性偶极子串的新颖结构组成的复合偶极子阵列（150）来产生和成像太赫兹电磁辐射的方法和系统。 例如，可以将由降频转换处理得到的太赫兹电磁辐射用作用于成像的照明源，作为通信的载体，或用作光谱的能量源。 例如，从升频转换过程产生的光电磁辐射可以用于形成来自THz电磁辐射的图像，用于违禁品检测，引导系统和医疗应用。

公开(公告)号：WO2004026521B1

公开(公告)日：2005-07-14

申请号：PCT/US0327505

申请日：2003-09-02

Applicant: BOEING CO

Inventor： RICE ROBERT R ,  VETROVEC JAN

IPC: B23K20/12 ,  B23K26/00 ,  B23K31/02 ,  B29C65/06

CPC classification number: B23K20/1235 ,  B23K20/1245

Abstract: There are provided an apparatus and method for friction welding structural members (60, 62). The apparatus -includes a connected shank (20) and probe (22). The probe (22) and the shank (20) defines an absorption surface (32) and a cavity (26) extending thereto. The absorption surface (32) is configured to receive electromagnetic radiation (52) from an electromagnetic radiation source (50) such as a light source or RF generator. The radiation (52) heats the probe (22), supplementing the heat generated by friction between the probe (22) and the structural members (60, 62), and thereby increasing the speed at which the probe (22) can be used to frictionally weld the structural materials (60, 62).

Abstract translation: 提供了一种用于摩擦焊接结构构件（60,62）的装置和方法。 装置 - 包括连接的柄（20）和探头（22）。 探针（22）和柄（20）限定吸收表面（32）和延伸到其上的空腔（26）。 吸收表面（32）被配置为从诸如光源或RF发生器的电磁辐射源（50）接收电磁辐射（52）。 辐射（52）加热探头（22），补充探头（22）和结构构件（60,62）之间的摩擦所产生的热量，从而增加探头（22）可用于的速度 摩擦地焊接结构材料（60,62）。

公开(公告)号：WO0161799A2

公开(公告)日：2001-08-23

申请号：PCT/US0102281

申请日：2001-01-23

Applicant: BOEING CO

Inventor： VETROVEC JAN

IPC: H01S3/02 ,  H01S3/042 ,  H01S3/06 ,  H01S3/23 ,  H01S3/00

CPC classification number: H01S3/025 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/0606 ,  H01S3/2316 ,  H01S3/2333

Abstract: An active mirror amplifier (AMA) laser module incorporating an optically transparent, rigid substrate having a plurality of cooling passages has one surface thereof disposed against a laser gain medium disk. The substrate also has a plurality of microchannels disposed near or at an outer surface thereof which is in contact with an outer surface of the disk. A cooling medium is circulated through the flow passages and the cooling microchannels to help keep the disk cool during use of the laser. This allows the laser module to operate at significantly increased power without overheating. In one preferred embodiment the disk is attached to the substrate using a pressure differential between a front surface of the disk and the pressure of the coolant. This eliminates attachment-induced thermal stresses of prior art designs and allow the laser to operate at increased power without fracturing the substrate. Pre-forming the laser medium to achieve a generally flat condition when lasing in an unrestrained condition is also disclosed, which also reduces thermal attachment stresses and allows the laser to operate at a higher power without fracturing the substrate. A preferred implementation of the laser module in constructing a power amplifier is also disclosed, as is the use of multiple optical pump sources and optical fibers for delivering the optical energy to the laser module.

Abstract translation: 包括具有多个冷却通道的光学透明刚性基板的有源反射镜放大器（AMA）激光器模块，其一个表面设置成抵靠激光增益介质盘。 基板还具有设置在与盘的外表面接触的外表面附近或其外表面处的多个微通道。 冷却介质通过流动通道和冷却微通道循环，以帮助在使用激光器期间保持冷却盘的冷却。 这允许激光模块以显着增加的功率工作而不会过热。 在一个优选实施例中，使用盘的前表面和冷却剂的压力之间的压力差将盘附接到基底。 这消除了现有技术设计的附着引起的热应力，并允许激光器在增加的功率下操作而不破坏衬底。 还公开了激光介质的预成形以实现在无限制条件下的激光时的大致平坦的状态，这也降低了热附着应力，并且允许激光器以更高的功率工作而不会破坏基板。 还公开了在构建功率放大器时激光模块的优选实施方案，以及使用多个光泵浦源和光纤将光能量传递到激光模块。

公开(公告)号：WO2008103537A2

公开(公告)日：2008-08-28

申请号：PCT/US2008052954

申请日：2008-02-04

Applicant: BOEING CO ,  VETROVEC JAN

Inventor： VETROVEC JAN

CPC classification number: H01S3/042 ,  F25B9/02 ,  F25D19/006 ,  F41H13/005 ,  H01S3/0404 ,  H01S3/0407 ,  H01S3/2308

Abstract: A laser system thermal management system includes a laser gain assembly and a thermal management assembly. The laser gain assembly includes a laser gain medium and may include laser pump diodes. The thermal management system includes a high pressure gas tank connected to an open-cycle Joule-Thompson refrigerator. Cooled and partially liquefied gas is introduced into a reservoir. The reservoir may be in good direct thermal contact with the laser gain assembly or via a closed loop recirculating fluid heat exchanger. The heat generated by the laser gain assembly is removed by heat exchange with the cooled gas and condensate in the reservoir either by direct thermal contact or via the recirculating heat exchanger loop. Gas evaporating in the reservoir is vented.

Abstract translation: 激光系统热管理系统包括激光增益组件和热管理组件。 激光增益组件包括激光增益介质，并且可以包括激光泵二极管。 热管理系统包括连接到开环焦耳汤普森冰箱的高压气罐。 将冷却和部分液化的气体引入储存器。 储存器可以与激光增益组件或通过闭环循环流体热交换器良好的直接热接触。 通过与冷却的气体和储存器中的冷凝物进行热交换，通过直接热接触或通过循环热交换器回路来消除由激光增益组件产生的热量。 在储存器中蒸发的气体被排出。

公开(公告)号：WO02060018A3

公开(公告)日：2003-01-23

申请号：PCT/US0146477

申请日：2001-12-04

Applicant: BOEING CO

Inventor： VETROVEC JAN

IPC: H01S3/094 ,  H01S3/00 ,  H01S3/042 ,  H01S3/06 ,  H01S3/063 ,  H01S3/0941 ,  H01S3/02

CPC classification number: H01S3/0941 ,  H01S3/005 ,  H01S3/042 ,  H01S3/0604 ,  H01S3/0612 ,  H01S3/0621 ,  H01S3/063 ,  H01S3/094057 ,  H01S3/2333 ,  H01S2301/02

Abstract: Apparatus and method for achieving improved performance n a solid-state laser. The solid-state laser apparatus (10) preferably uses a laser gain medium (12) in the shape of a disk wherein optical pump radiation (36) is injected into the peripheral edge of the disk. In the preferred embodiment the laser gain medium is provided with optical coatings for operation in the active mirror configuration. Furthermore, the laser gain medium is pressure-clamped to a rigid, cooled substrate (46), which allows it to maintain a prescribed shape even when experiencing significant thermal load. A cooling medium (52) can be provided to a heat exchanger internal to the substrate and/or flowed through the passages on the substrate surface, thereby directly cooling the laser gain medium. Sources (68) of optical pump radiation are played around the perimeter of the gain medium. Tapered ducts (20) may be disposed between the sources and the gain medium for the purpose of concentrating optical pump radiation. With the proper choice of laser gain medium doping, pump source divergence and geometry, a uniform laser gain is achieved across large portions of the gain medium.

Abstract translation: 一种在固体激光器中实现改进性能的装置和方法。 固态激光装置（10）优选地使用盘形的激光增益介质（12），其中光泵辐射（36）被注入到盘的周边边缘。 在优选实施例中，激光增益介质设置有用于在主动反射镜配置中操作的光学涂层。 此外，激光增益介质被压力夹持到刚性的冷却的基板（46），这使得即使当遇到显着的热负载时也能保持规定的形状。 可以将冷却介质（52）提供给基板内部的热交换器和/或流过基板表面上的通道，从而直接冷却激光增益介质。 光泵辐射的源（68）围绕增益介质周边进行。 锥形管道（20）可以设置在源和增益介质之间，用于集中光泵辐射。 通过适当选择激光增益介质掺杂，泵浦源发散和几何形状，在增益介质的大部分上实现均匀的激光增益。