Automatic laser power control in an optical communication system
    1.
    发明授权
    Automatic laser power control in an optical communication system 有权
    光通信系统中的自动激光功率控制

    公开(公告)号:US07203424B2

    公开(公告)日:2007-04-10

    申请号:US09941319

    申请日:2001-08-28

    IPC分类号: H04B10/00

    摘要: A system and method for use with an optical communication beam of light is disclosed. The system allows the beam of light to operate at an adequate power level that provides a robust optical link while minimizing any safety risk to humans. Such a system includes multiple operating modes which control the power output of the beam of light. In the normal mode, the beam of light operates at a selected power level which provides a desired signal to noise ratio. Once a blocking occurs, the beam of light enters a power reduction mode to prevent harm to the blocking object. An acquisition and recovery mode is then employed to reestablish the blocked communication link.

    摘要翻译: 公开了一种用于光通信光束的系统和方法。 该系统允许光束以足够的功率水平运行,从而提供鲁棒的光学链路,同时最小化对人类的任何安全风险。 这种系统包括控制光束的功率输出的多种操作模式。 在正常模式下,光束以提供期望的信噪比的所选功率电平工作。 一旦发生阻塞,光束进入功率降低模式,以防止对阻挡物体的伤害。 然后采用采集和恢复模式来重新建立阻塞的通信链路。

    Spectral analysis system utilizing water vapor plasma
    8.
    发明申请
    Spectral analysis system utilizing water vapor plasma 审中-公开
    利用水蒸气等离子体的光谱分析系统

    公开(公告)号:US20080014653A1

    公开(公告)日:2008-01-17

    申请号:US11827731

    申请日:2007-07-13

    IPC分类号: G01J3/443 G01J3/00

    摘要: A system and method for analysis of minute quantities of contaminants in water. Liquid water is converted to water vapor and then excited into a plasma state with microwave radiation. Optical emissions from the plasma are spectrally analyzed to provide qualitative and/or quantitative analyses of the contaminants in the water. Preferred embodiments provide special techniques for generating the water vapor from a water stream; exciting the water vapor to a plasma state; varying and controlling the plasma energy; introducing samples into an existing plasma; collecting emissions from the plasma from a variety of angles; selecting the optical collection angles; protecting the analysis optics from the plasma; exhausting the spent plasma gases back into the water stream; and analyzing the results to yield concentrations of elements and molecules in the sample.

    摘要翻译: 用于分析水中微量污染物的系统和方法。 液态水转化为水蒸汽,然后用微波辐射激发成等离子体状态。 对等离子体的光发射进行光谱分析,以提供水中污染物的定性和/或定量分析。 优选实施例提供了用于从水流产生水蒸汽的特殊技术; 激发水蒸汽到等离子体状态; 改变和控制等离子体能量; 将样品引入现有的等离子体; 从各种角度收集等离子体的排放; 选择光学收集角度; 保护分析光学元件免受等离子体的影响; 将废等离子体气体排放回水流中; 并分析结果以产生样品中元素和分子的浓度。

    Optical transceiver design and mechanical features
    9.
    发明申请
    Optical transceiver design and mechanical features 有权
    光收发器设计和机械特性

    公开(公告)号:US20070116471A1

    公开(公告)日:2007-05-24

    申请号:US11506155

    申请日:2006-08-17

    IPC分类号: H04B10/00

    CPC分类号: H04B10/1125

    摘要: A node for use in a wireless communication network that facilitates alignment of the node with other nodes in the network and a method for aligning the node. The node includes mounting fixtures that enables the mounting of GPS receivers and a tiltmeter to obtain position and bearing information for the node. The node contains alignment features that enable the positioning of an optical transmitter/receiver pair in the node using the data obtained from the GPS receivers and tiltmeter.

    摘要翻译: 用于无线通信网络中的节点,其有利于节点与网络中的其他节点的对准以及用于对准节点的方法。 该节点包括安装固定装置,其能够安装GPS接收器和倾斜仪,以获得节点的位置和方位信息。 节点包含对准特征,使得能够使用从GPS接收机和倾斜仪获得的数据来定位节点中的光发射机/接收机对。

    Optical amplifiers in a free space laser communication system
    10.
    发明授权
    Optical amplifiers in a free space laser communication system 有权
    光放大器在自由空间激光通信系统中的应用

    公开(公告)号:US07761009B2

    公开(公告)日:2010-07-20

    申请号:US11513493

    申请日:2006-08-31

    IPC分类号: H04B10/00

    CPC分类号: H04B10/112

    摘要: Disclosed is a novel free space optical communication system comprising an optical amplifier configured to amplify an optical signal received from a fiber optic cable, a transmitter coupled to the optical amplifier and configured to transmit the amplified optical signal across a free space medium. The system also includes a receiver configured to receive the attenuated optical signal and a second optical amplifier coupled to the receiver configured to amplify the attenuated optical signal before transmitting the optical signal on to a fiber optic cable. The optical amplifier is preferably a Raman optical amplifier, but may also be any other optical amplifier, or combination of optical amplifiers, known in the art.

    摘要翻译: 公开了一种新颖的自由空间光通信系统,其包括被配置为放大从光纤电缆接收的光信号的光放大器,耦合到光放大器并被配置为在自由空间介质上传输放大的光信号的发射器。 该系统还包括被配置为接收衰减的光信号的接收器和耦合到接收器的第二光放大器,该接收器配置成在将光信号传送到光纤电缆之前放大衰减的光信号。 光放大器优选地是拉曼光放大器,但也可以是本领域已知的任何其它光放大器或光放大器的组合。