公开(公告)号：US3811774A

公开(公告)日：1974-05-21

申请号：US24599572

申请日：1972-04-20

申请人： US ARMY

发明人： HONEYCUTT T ,  OTTO W ,  CASON C

IPC分类号： G01S17/32 ,  G01C3/08 ,  G01P3/36

CPC分类号： G01S17/325

摘要： A frequency modulated, continuous wave radar range measurement system using a laser oscillator is disclosed. A ring laser, carbon dioxide (CO2), laser oscillator allows target range and velocity measurement as either an active or a passive system. Nonlinear variation of laser output power is obtained by mixing the reflected signal with the energy within the laser cavity. In an active system the resulting beat frequency is sensed by a local receiver-detector and reduced to obtain the range and velocity data at the transmission site. The beat frequency is also superimposed on the transmitted laser beam and is therefore available at the target causing the beat frequency and is available to other detectors which may be positioned to receive a portion of the reflected energy, affording a passive system.

摘要翻译： 公开了一种使用激光振荡器的调频连续波雷达测距系统。 环形激光器，二氧化碳（CO2），激光振荡器允许目标范围和速度测量作为主动或被动系统。 激光输出功率的非线性变化是通过将反射信号与激光腔内的能量混合而获得的。 在有源系统中，所产生的拍频由本地接收机检测器感测并减少以获得传输站点处的范围和速度数据。 拍频也叠加在发射的激光束上，因此在目标处可以产生拍频，并且可用于可被定位成接收一部分反射能量的其它检测器，从而提供无源系统。

公开(公告)号：US3828277A

公开(公告)日：1974-08-06

申请号：US37626173

申请日：1973-07-03

申请人： US ARMY

发明人： OTTO W ,  MILTON R

IPC分类号： H01S3/038 ,  H01S3/0971 ,  H01S3/09

CPC分类号： H01S3/0388 ,  H01S3/0971

摘要： A high pressure gas laser is described in which uniform electrical field distribution is obtained for lateral discharge in the gas by employing a capacitor formed within the laser cavity. The laser may be a parallelepiped with capacitor plates forming two opposite rides of the parallelepiped. One of the plates is coated with a ceramic dielectric. Alternatively, the laser may be a conductive circular cylinder with a center electrode, and with a ceramic dielectric coating on the inside of the cylinder. A high voltage source is connected to the laser. Emission occurs when the capacitor charges to a high enough voltage to discharge through the gas. For better charge distribution, the coating may be covered by a resistive layer, or may have a mosaic of isolated conductors thereon.

摘要翻译： 描述了一种高压气体激光器，其中通过使用形成在激光腔内的电容器，在气体中横向放电获得均匀的电场分布。 激光器可以是平行六面体，其具有形成平行六面体的两个相对的乘座的电容器板。 其中一块板用陶瓷电介质涂覆。 或者，激光器可以是具有中心电极的导电圆柱体，并且在气缸内部具有陶瓷电介质涂层。 高压源连接到激光器。 当电容器充电到足够高的电压以通过气体放电时发生发射。 为了更好的电荷分布，涂层可以被电阻层覆盖，或者可以在其上具有隔离导体的马赛克。