| CPC H04B 10/071 (2013.01) [H04Q 11/0005 (2013.01); H04Q 2011/0009 (2013.01); H04Q 2011/0015 (2013.01)] | 7 Claims |
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1. An optical communication system comprising:
a first optical communication device configured to multiplex one or more input optical signals to generate a single first optical signal, generate a second optical signal of a preset wavelength, output a notification signal while the second optic signal is generated and output, generate a third optical signal by combining the first optical signal and the second optical signal, and transmit the third optical signal to a second optical communication device through any one of a plurality of optical cables through a switch; and
the second optical communication device configured to receive the third optical signal through a coupler connected to the plurality of optical cables from the first optical communication device, separate the third optical signal into the first optical signal and the second optical signal, and reflect the second optical signal and transmit reflected light to the first optical communication device through the coupler,
wherein the first optical communication device controls the switch by analyzing the reflected light,
wherein the reflected light is transmitted to at least one of the plurality of optical cables through the coupler, and
wherein the at least one of the plurality of optical cables includes an optical cable from which the first optical signal is received,
wherein, in a case that the reflected light is not received to the first optical communication device during a preset time after the notification signal is output, the first optical communication device is configured to determine that there is a connection with a third optical communication device other than the second optical communication device through the optical cable that the third optical signal is transmitted.
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