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    • 5. 发明申请
    • FREE SPACE OPTICAL (FSO) LASER COMMUNICATION SYSTEM EMPLOYING LASER BEAM SPECKLE TRACKING AND LOCKING PRINCIPLES
    • 自由空间光(FSO)激光通信系统采用激光光束跟踪和锁定原理
    • WO2006001849A2
    • 2006-01-05
    • PCT/US2005/004389
    • 2005-02-14
    • ADAPTIVE OPTICS ASSOCIATES, INC.WIRTH, AllanJANKEVICS, Andrew
    • WIRTH, AllanJANKEVICS, Andrew
    • G02F1/00
    • G02B26/06
    • A free-space adaptive optical laser communication system having signal transmission and reception channels at all terminals in the communication system, wherein wavefront sensing and wavefront correction mechanisms are employed along signal transmission and reception channels of all terminals in the communication system (i.e. adaptive optics) to improve the condition of the laser beam at the receiver (i.e. reduce the size of the spot a the detector plane). Speckle-to-receiver-aperture tracking mechanisms are employed in the transmission channel of the communication system and laser beam speckle tracking mechanism in the reception channels thereof, so as to achieve a first level of optical signal intensity stabilization at signal detector of each receiving channel. Speckle-to-fiber/detector locking mechanisms are also employed in signal receiving channels of all terminals in the communication system so as to achieve a second level of optical signal intensity stabilization at signal detector of each receiving channel.
    • 在通信系统中的所有终端具有信号发射和接收信道的自由空间自适应光学激光通信系统,其中在通信系统(即,自适应光学)中的所有终端的信号发射和接收信道上采用波前感测和波前校正机制, 以改善接收器处激光束的状态(即,减小探测器平面的光斑尺寸)。 在通信系统的传输通道和其接收通道中的激光束散斑跟踪机构中采用斑点到接收器 - 孔径跟踪机制,以便在每个接收信道的信号检测器处实现第一级光信号强度稳定 。 在通信系统中的所有终端的信号接收信道中也采用斑点到光纤/检测器锁定机构,以便在每个接收信道的信号检测器处实现第二级的光信号强度稳定。