METHOD AND DEVICE FOR TRANSMITTING OPTICAL SIGNAL, AND PASSIVE OPTICAL NETWORK

摘要

Disclosed are a method and a device for transmitting an optical signal, and a passive optical network. The method includes: an ONU receiving a downlink frame from an OLT, wherein the downlink frame is used for indicating status information about a wavelength channel; the ONU determining an idle wavelength channel according to the downlink frame; the ONU carrying out a wavelength registration with the OLT on the idle wavelength channel and transmitting an optical signal after the wavelength registration has succeeded. By means of the present invention, the resource utilization of the optical signal transmission is improved and the registration process is simplified.