Patent ID: 11962352
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC G  H | IPC H

Claim 4:
5. The device according to claim 1, wherein:
the second port is further configured to transmit an input second optical signal to the second WDM, wherein the second optical signal is a multi-wavelength signal;
the second WDM is further configured to demultiplex the second optical signal, to obtain a demultiplexed second optical signal, wherein the demultiplexed second optical signal comprises multiple spatially separated wavelength signals;
the optical switch is further configured to perform optical switching on the demultiplexed second optical signal;
the optical splitter is further configured to split a second optical signal obtained after optical switching to obtain a third sub-signal and a fourth sub-signal;
the first WDM is further configured to multiplex the third sub-signal, to obtain a multiplexed third sub-signal;
the first port is further configured to output the multiplexed third sub-signal; and
the optical monitor is configured to perform optical performance monitoring on the fourth sub-signal.