Method and apparatus for determining whether the configuration of an optical transmission interface should be adjusted, method and apparatus for configuring an optical transmission interface, and information storage means

摘要

In order to determine whether the configuration of the optical transmission interface of the first device must be adjusted to transmit the optical signal to the second device via the optical bandpass filter, the second device is An optical signal transmitted at a certain carrier wavelength by the above-described apparatus, and configured to receive the optical signal output by the optical bandpass filter when the carrier wave wavelength is included in the passband of the optical bandpass filter. A code word received by the second device in response to the optical signal described above, with the carrier wavelength and / or the pass band of the optical bandpass filter not known in advance. Monitoring a gradual change in the difference level between the first device and the corresponding codeword transmitted by the first device, and based on the monitoring described above, Run and determining whether must adjust the configuration of a transmission interface.