Routing Node, Optical Switching Network, and Optical Signal Transmission Method

摘要

A routing node includes: at least one optical buffer, a switching node, and at least one transmission waveguide, where an output end of each optical buffer is connected to an input end of the switching node; each transmission waveguide is connected to an output end of the switching node. The optical buffer is configured to parse a received optical signal to obtain an identifier of a destination routing node, and send the identifier to the switching node. The switching node determines whether an output port required by the destination routing node is in an idle state or a busy state; and control the optical buffer to store the optical signal if the output port is in a busy state; or send the optical signal to the destination routing node if the output port is in an idle state.

主权项

1. A routing node comprising:
a transmission waveguide; an optical buffer comprising an optical buffer output end and configured to:
receive an optical signal; andparse the optical signal to obtain an identifier of a destination routing node; and a switching node comprising a switching node output end coupled to the transmission waveguide and a switching node input end coupled to the optical buffer output end, wherein the switching node is configured to:
receive the identifier from the optical buffer;determine, according to the identifier, whether an output port required by the destination routing node is in an idle state or a busy state;control the optical buffer to store the optical signal when the output port is in a busy state; andsend the optical signal to the destination routing node using the transmission waveguide when the output port is in an idle state,wherein the transmission waveguide corresponds to the output port.