公开(公告)号：US5999299A

公开(公告)日：1999-12-07

申请号：US79377

申请日：1998-05-14

申请人： Victor Chan ,  Michael Rivers ,  James Menders ,  Scott Bloom

发明人： Victor Chan ,  Michael Rivers ,  James Menders ,  Scott Bloom

IPC分类号： G02B5/30 ,  H01S3/00 ,  H04B10/10 ,  H04B10/105 ,  H04B10/22 ,  H04B10/00

CPC分类号： H04B10/11 ,  H04B10/1143 ,  H04B10/118

摘要： A laser communication device for transmitting and receiving information imposed on laser beams. A transmitting unit and a receiving unit are implemented based on atomic line filters. The transmitting unit includes a compact tunable laser locked to a selected atomic transition line. Information may be imposed on a laser beam by modulating the frequency thereof while maintaining its output power substantially unchanged.

摘要翻译： 一种激光通信装置，用于发送和接收施加在激光束上的信息。 基于原子线滤波器实现发送单元和接收单元。 发射单元包括锁定到所选原子跃迁线的紧凑型可调谐激光器。 信号可以通过调制其频率同时保持其输出功率基本上不变而施加在激光束上。

公开(公告)号：US5801866A

公开(公告)日：1998-09-01

申请号：US667400

申请日：1996-06-21

申请人： Victor Chan ,  Michael Rivers ,  James Menders ,  Scott Bloom

发明人： Victor Chan ,  Michael Rivers ,  James Menders ,  Scott Bloom

IPC分类号： G02B5/30 ,  H01S3/00 ,  H04B10/10 ,  H04B10/105 ,  H04B10/22 ,  H04B10/00

CPC分类号： H04B10/11 ,  H04B10/1143 ,  H04B10/118

摘要： A portable laser communication transceiver for transmitting and receiving information imposed on laser beams. A communication signal is imposed on a laser beam having a divergence of between 1 degree and 4 degrees. The beam is directed by an operator, sighting through a telescopic viewing device, at a distant transceiver which collects light in the laser beam with a. In preferred embodiments, the transceivers are handheld and each comprises a microphone and earphones allowing operators to talk with each other. Digital information can also be transmitted from personal computers and other electronic information equipment at the location of each operator. In a preferred embodiment useful for military and surveying applications, a GPS, a compass and a laser ranging system is provided. This enables the operator to sight through a binocular to a target and determine its position in longitude, latitude and elevation. Target position information can then be transmitted to a distant transceiver which in this case could be a base transceiver.

摘要翻译： 一种用于发送和接收激光束信号的便携式激光通信收发器。 通信信号施加在发散度在1度和4度之间的激光束上。 光束由操作者引导，通过可伸缩的观察装置观察，在遥远的收发器处，用a收集激光束中的光。 在优选实施例中，收发器是手持式的，并且每个收发器包括允许操作者彼此通话的麦克风和耳机。 数字信息也可以从个人计算机和其他电子信息设备在每个操作者的位置传输。 在用于军事和测量应用的优选实施例中，提供了GPS，罗盘和激光测距系统。 这使得操作者能够通过双目瞄准目标并确定其在经度，纬度和高度上的位置。 然后可以将目标位置信息发送到远程收发器，在这种情况下可以是基本收发器。

公开(公告)号：US5754323A

公开(公告)日：1998-05-19

申请号：US221527

申请日：1994-04-01

申请人： Michael D. Rivers ,  Scott H. Bloom ,  Victor Chan ,  James Menders

发明人： Michael D. Rivers ,  Scott H. Bloom ,  Victor Chan ,  James Menders

IPC分类号： H04B10/118 ,  H04B10/00

CPC分类号： H04B10/118

摘要： For transmitting information via laser beams to and from other similar laser communication transceivers. Each transceiver comprises a wavelength locked beacon laser providing a beacon beam. The transceivers determine the precise location of other transceivers by detecting these beacon beams with beacon receive units comprising atomic line filters matched to the beacon wavelength. Signals are transmitted by imposing an electronic signal on laser beams produced by one or more signal laser devices. These signals are directed with precision at other transceivers, and the signal beams are detected with very narrow field of view signal receive units. In a preferred embodiment, these transceivers are installed on 66 satellites in low earth orbit and on selected mountain tops on earth to provide a global communication system.

摘要翻译： 用于通过激光束向其他类似的激光通信收发器发送信息。 每个收发器包括提供信标光束的波长锁定信标激光器。 收发器通过用包括与信标波长匹配的原子线滤波器的信标接收单元来检测这些信标波束来确定其他收发机的精确位置。 通过在由一个或多个信号激光装置产生的激光束上施加电子信号来传输信号。 这些信号在其他收发器处被精确地引导，并且以非常窄的视场信号接收单元检测信号光束。 在优选实施例中，这些收发器安装在低地球轨道上的66颗卫星和地球上选定的山顶上，以提供全球通信系统。

公开(公告)号：US06191878B1

公开(公告)日：2001-02-20

申请号：US08921812

申请日：1997-09-02

申请人： Brett Spivey ,  James Menders

发明人： Brett Spivey ,  James Menders

IPC分类号： H04B1006

CPC分类号： H04B10/11 ,  H04B10/1143 ,  H04B10/118 ,  H04B10/673 ,  H04B10/675

摘要： A high speed optical receiver for receiving a substantially diminished optical signal. An optical amplifier amplifies the diminished optical signal at least several db and an ultra narrow-band filter filters the noise generated in the optical amplifier to produce a filtered amplified optical signal which is detected by a fast response photo detector. In a preferred embodiment the optical amplifier is a semiconductor laser amplifier. In this embodiment a Faraday filter provides the ultra narrow-band filtering, virtually eliminating the noise produced by the amplifier. Transmitters are described for transmitting information at a wavelength tuned to the ultra narrow-band filters.

摘要翻译： 一种用于接收基本上减小的光信号的高速光接收机。 光学放大器放大至少几个dB的减小的光学信号，并且超窄带滤波器对在光放大器中产生的噪声进行滤波，以产生被快速响应的光检测器检测到的滤波放大的光信号。 在优选实施例中，光放大器是半导体激光放大器。 在本实施例中，法拉第滤波器提供超窄带滤波，实际上消除了放大器产生的噪声。 发射机被描述为以调谐到超窄带滤波器的波长发送信息。