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2. 发明申请

WO2002060074A2 LASER COMMUNICATION SYSTEM 审中-公开
标题翻译：激光通信系统
公开(公告)号：WO2002060074A2
公开(公告)日：2002-08-01
申请号：PCT/US2002/003080
申请日：2002-01-16
申请人： FSONA COMMUNICATIONS CORPORATION , MECHERLE, George, Stephen , HOLCOMB, Terry, Lee , CARLSON, Robert, T. , WANG, Fang-Xin , DRAGANOV, Vladimir
发明人： MECHERLE, George, Stephen , HOLCOMB, Terry, Lee , CARLSON, Robert, T. , WANG, Fang-Xin , DRAGANOV, Vladimir
IPC分类号： H04B
CPC分类号： H04B10/1123 , H04B10/032
摘要： An optical wireless transceiver for communicating broadband signals through free space includes an input, a regenerator, a splitter and a plurality of lasers in transmitter modules. A very fast (low f-number) optical receiver module includes a reflector, preferably a Mangin mirror or parabolic reflector with field corrector, aligned with an input aperture. A photodiode receives the signal from the reflector for subsequent demodulation. A background rejection filter is disposed between the reflector and the photodiode at the focal point of the mirror. The transceiver provides signal regeneration and switchable data rates. Connections are made to optical or electrical digital inputs and outputs bearing signals of various protocols. The plurality of lasers includes adjustable-beamwidth collimating lenses. Monitoring circuitry including a controller monitors the system. A stand-alone backup RF transceiver operating in conjunction with the laser transceiver provides enhanced availability. An efficient high-current, high power laser driver capable of modulating a laser between 100 and 1500 mA at data rates greater than 10 Mbits/sec is provided. A highly efficient thermoelectric cooler operates to cool the laser diode, or other objects requiring cooling.
摘要翻译：用于通过自由空间传送宽带信号的光学无线收发器包括发射器模块中的输入，再生器，分离器和多个激光器。一个非常快速（低f值）的光学接收器模块包括一个反射器，最好是带有场校正器的Mangin镜或抛物面反射器，与输入孔对准。光电二极管接收来自反射器的信号以用于随后的解调。在反射镜和焦点处的反射器和光电二极管之间设置背景抑制滤波器。收发器提供信号再生和可切换数据速率。连接到光学或电子数字输入和输出承载各种协议的信号。多个激光器包括可调节束宽准直透镜。包括控制器的监控电路监控系统。与激光收发器配合使用的独立备用RF收发器提供增强的可用性。提供了一种高效的高电流，高功率激光驱动器，能够以大于10 Mbits / sec的数据速率调制100至1500 mA的激光。一个高效率的热电冷却器用于冷却激光二极管或其他需要冷却的物体。

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