CLOCK RECOVERY METHOD AND SYSTEM FOR MULTIPLE ASYNCHRONOUS WAVELENGTH LABEL SIGNALS

Disclosed in the present invention is a clock recovery method for multiple asynchronous wavelength label signals. The method comprises: performing channel separation on multiple asynchronous wavelength label signals, wherein the separated channel data is combined into a string of gap-containing channel data in a time dimension; synchronously marking the channel data with corresponding channel labels and valid signal marks; outputting three pieces of independent synchronization data; according to the inputted valid signal marks, determining whether the channel data and the channel labels are valid; if yes, reading a required state parameter of a clock phase-locked loop; and performing clock recovery processing on the channel data, and re-marking the processed channel data with valid signal marks and channel labels matched with the channel data. According to the present invention, a single clock recovery module is used to perform clock recovery on multiple asynchronous signals, so that the requirement of expone