SYSTEM, METHOD, AND DEVICE FOR OPTICAL TRANSMISSION BASED ON POLARIZATION MULTIPLEXING

摘要

The embodiments of the present invention disclose a system, a method, and a device for polarization multiplexing. The method includes: co-direction judgment: after judging that the similarity between the control quantities of the two optical signals meets a predetermined similarity criterion, enabling at least one of the two branches to re-search for the control quantity until the similarity between the control quantities of the two optical signals does not meet the predetermined similarity criterion. The preceding technical solution may substantially prevent the optical signals output by the two branches at a receiving end from having the co-directional state of polarization, without affecting the complexity and implementation cost of the system and the processing time delay of data signals at the receiving end.