METHOD AND APPARATUS FOR OPTICAL SIGNAL CONTROL USING FILTER IN MULTICASTING RING NETWORK NODE AND PROTECTION SWITCHING IN OPTICAL MULTIPLEX SECTION

摘要

A method and apparatus for optical signal control using a filter in a multicasting ring network node and protection switching in an optical multiplex section is disclosed, in which a multicasting ring network node extracts or passes a wavelength from a node requiring optical signal wavelength extraction, transmits the passed optical signal to a neighboring node through control as necessary, and readily performs protection switching on an optical multiplex section signal.

主权项

1. An apparatus for operating traffic signals, the apparatus comprising:
a first signal line configured to transmit first optical signals of a plurality of channels; a second signal line configured to transmit second optical signals of a plurality of channels; a multiplexer configured to multiplex and output a plurality of optical signals as third optical signals; a distributor configured to distribute the third optical signals to the first signal line and the second signal line; a first optical coupler configured to couple the third optical signals to the first optical signals transmitted through the first signal line; a second optical coupler configured to couple the third optical signals to the second optical signals transmitted through the second signal line; a first optical divider configured to extract at least a portion of the first optical signals transmitted through the first signal line; a second optical divider configured to extract at least a portion of the second optical signals transmitted through the second signal line; a first filter configured to cut off at least a portion of the first optical signals transmitted through the first signal line; and a second filter configured to cut off at least a portion of the second optical signals transmitted through the second signal line.