摘要：

Provided are an optical communication device and an optical communication system capable of preventing the costs of equipment from increasing for an optical communication network constructed including devices provided by different vendors or devices of different generations. An optical communication device includes a plurality of optical transponders , and configured to perform mutual conversion between an optical signal and an electrical signal; a noise addition unit configured to add noise that degrades signal quality to an input optical signal and output the resulting optical signal; a first optical switch configured to output an optical signal input from outside or the noise addition unit to at least one of the plurality of optical transponders , and ; and a second optical switch configured to directly or indirectly output an optical signal input from the at least one of the plurality of optical transponders , and to outside or the noise addition unit

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