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Optical retrodirective tracking system approach using an array of phase conjugators for communication and power transmission

机译：使用相位共轭器阵列进行通信和功率传输的光学逆向跟踪系统方法

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摘要

A new concept for a retrodirective tracking system applicable for communication and power transmissionis proposed. In the proposed concept, the power transmitter utilizes a receiver's pilot signal to obtain information about its direction by conjugating the signal's phase inside a nonlinear medium. Power is therefore transmitted back to the receiver by the phase-conjugated signal beam. The power can be concentrated by an array of phase conjugators, which provides a large aperture so that the intensity can be increased on the receiver's photovoltaic panels compared to a single element. Controlling the phase and the direction of the readout beams in the four-wave-mixing process provides control over the interference pattern, its position, and its size. A numerical analysis is given for the phase and spot size control, and measurements with two Co-doped Sr_(x)Ba_(1-x)Nb_(2)O_(6) (Co:SBN) crystals confirm the occurrence of interference that is achieved for the case of two beams.
机译：提出了一种适用于通信和电力传输的逆向跟踪系统的新概念。在提出的概念中，功率发送器利用接收器的导频信号，通过共轭非线性介质内部的信号相位来获取有关其方向的信息。因此，功率通过相位共轭信号束传输回接收器。功率可以通过相位共轭器阵列集中，该阵列提供了一个大孔径，因此与单个元件相比，可以提高接收器光伏面板上的强度。在四波混频过程中控制读出光束的相位和方向可控制干涉图样，其位置和大小。给出了相位和光斑尺寸控制的数值分析，并使用两个Co掺杂Sr_（x）Ba_（1-x）Nb_（2）O_（6）（Co：SBN）晶体进行测量，确认了干扰的发生，即对于两束光束可以实现。

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