OPTICAL COMMUNICATION SYSTEM, OPTICAL RECEIVER, AND WAVELENGTH CONVERTER

摘要

An optical communication system in which an optical signal superposed on a superposition signal corresponding to the transmission rate is sent from an optical transmitter to an optical receiver, the transmission rate is measured based on the superposition signal contained in the received optical signal transmitted from the transmitter and received by the optical receiver, the setting of the operation, for example, of a phase-locked loop circuit for clock reproduction is switched according to the measured transmission rate, and data included in the received optical signal is identified. Therefore, even if optical signals are transmitted from an optical transmitter to an optical receiver at different transmission rates, the optical signals can be received by one optical receiver.