Patent ID: 11909514
Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 2:
3. The reconfigurable optical add-drop multiplexer according to claim 1, wherein the filter comprises a downlink input port more than one downlink output port corresponding to the downlink input port, an uplink output port, and more than one uplink input port corresponding to the uplink output port;
the downlink input port is connected to the first output port of the first wavelength-selective switch, the downlink output ports are connected to the upper ports of the optical cross-connect device, and the filter is configured to separate the dense wavelength division multiplexing optical signals that are allocated according to the wavelengths and that are outputted from the first output port into a plurality of single-channel optical signals, and output the single-channel optical signals to the upper ports of the optical cross-connect device through the more than one downlink output port; and
the uplink output port is connected to the second input port of the second wavelength-selective switch, the uplink input ports are connected to the upper ports of the optical cross-connect device, and the filter is further configured to multiplex single-channel optical signals inputted from the more than one uplink input port to the same optical channel, and output multiplexed optical signals into the second input port through the uplink output port.