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

Claim 10:
11. An optical communication system comprising:
a first optical transceiver including processing circuitry to generate, as test signals, a collection of narrowband signals and send the test signals to a transmission line of an optical communication network, the narrowband signals being a plurality of signals having a narrower bandwidth than a bandwidth of a 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
a second optical transceiver including processing circuitry to receive the test signals having been sent from the test signal transmitter and then having passed through the wavelength filter, to calculate a bandwidth of the test signals received by the test signal receiver; and to perform determination of a modulation rate of a transmission signal and a modulation level of the transmission signal depending on the bandwidth.