论文标题
在无线电系统上控制雷利 - 背面散射引起的失真,用于放射量度应用
Controlling Rayleigh-Backscattering-Induced Distortion in Radio over Fiber Systems for Radioastronomic Applications
论文作者
论文摘要
目前,在重要的放射量表场景中使用了利用激光源的直接调制的纤维(ROF)系统。由于某些实现的特殊操作条件,在这里可以认为,在此处,通常在ROF链接中产生非线性的现象可以在这里被认为是无害的。但是,这些相同的操作条件可以使ROF系统容易受到不同类型的非线性效应的影响,这与瑞利反向散射信号对传输的信号的影响有关。对现象进行了严格的描述,并在理论上和实验上都提出和证明了对问题的有效对策。
Radio over Fiber (RoF) Systems exploiting a direct modulation of the laser source are presently utilized within important Radioastronomic scenarios. Due to the particular operating conditions of some of these realizations, the phenomena which typically generate nonlinearities in RoF links for telecommunications applications can be here regarded as substantially harmless. However, these same operating conditions can make the RoF systems vulnerable to different kinds of nonlinear effects, related to the influence of the Rayleigh Backscattered signal on the transmitted one. A rigorous description of the phenomenon is performed, and an effective countermeasure to the problem is proposed and demonstrated, both theoretically and experimentally.