OPTICAL TRANSMISSION SYSTEM AND TRANSMISSION METHOD, USING A COMBINATION OF POLARIZATION MODULATION AND FREQUENCY MODULATION

摘要

PROBLEM TO BE SOLVED: To provide a wavelength multiplex optical transmission system, maintaining high frequency utilization efficiency, improving light-reception sensitivity, and realizing long distance transmission.;SOLUTION: The optical transmission system comprises means for performing polarization modulation and means for performing frequency modulation. The means for performing polarization modulation does not use a plurality of polarized waves simultaneously. The optical transmission system further comprises multi-value modulation means.;COPYRIGHT: (C)2013,JPO&INPIT