Patent ID: 11876554
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An optical transceiver comprising processing circuitry
to calculate, when test signals are sent to a transmission line of an optical communication network from a test signal transmitter and a test signal receiver receives the test signals having passed through a wavelength filter, a bandwidth of the test signals received by the test signal receiver, the test signal transmitter generating, as the test signals, a collection of narrowband signals, the narrowband signals being a plurality of signals having a narrower bandwidth than a bandwidth of the wavelength filter and having different frequencies, and the wavelength filter being included in an optical splitter inserted in the transmission line, and the collection of narrowband signals including a narrowband signal having a higher frequency than a highest frequency in the bandwidth of the wavelength filter and a narrowband signal having a lower frequency than a lowest frequency in the bandwidth of the wavelength filter, and
to perform determination of a modulation rate of a transmission signal and a modulation level of the transmission signal depending on the bandwidth.