OPTICAL TRANSMISSION APPARATUS, OPTICAL COMMUNICATION APPARATUS, OPTICAL COMMUNICATION SYSTEM, AND OPTICAL COMMUNICATION METHOD

摘要

It is intended to suppress the deterioration of the transmission quality of an optical signal propagating through an optical fiber due to the intensity variation of a control signal. An exemplary aspect of the present invention includes outputting main signal light; generating a first optical signal by intensity-modulating an optical signal depending on a control signal; generating a second optical signal by intensity-modulating an optical signal depending on a differential component between a prescribed signal having a constant intensity and the control signal; outputting a wavelength-multiplexed optical signal by multiplexing the first optical signal being generated and the second optical signal being generated; and transmitting a transmitting signal by multiplexing the output main signal light being output and the wavelength-multiplexed optical signal being output.