SINGLE-FIBER BIDIRECTIONAL OSC IMPLEMENTATION METHOD AND DEVICE FOR WAVELENGTH DIVISION SYSTEM

The present invention relates to the technical field of optical fiber communications, and disclosed are a single-fiber bidirectional OSC implementation method and device for a wavelength division system. According to the present invention, asymmetric and symmetric single-fiber bidirectional OSC functions are respectively implemented by modifying a connection mode of an OSCAD single disk, i.e., transmissions in OSC receiving and transmitting directions are performed in one fiber core, and it is ensured that the path and length of the OSC reception and transmission are identical. The OSC is used for transmitting a 1588PTP clock; because receiving and transmitting paths are in the same fiber core, it is ensured that the receiving and transmitting paths of the OSC are strictly symmetric and of equal length, so that when performing 1588 clock calculation, an error would not occur due to different optical fiber lengths. Moreover, an asymmetric wavelength division system is further provided with an automatic detecti