稳相回传系统中的偏振跟踪和控制

In the phase stabilized transmission system, the stability of optical polarization in remote end directly affects the stable phase return effect. In this paper, we propose and demonstrate a polarization tracking and control scheme of phase stabilized transmission system.we verify the optical signal in the distal polarization can be tracking control under the condition of a center end phase stable return system is still not affected. We design an automatic feedback polarization controller (Auto-PC). The design and the test of Auto-PC module was introduced. We use the module as the polarization tracking device in central station of phase stabilized transmission system.