Patent ID: 9166724
Filing Date: 2015-10-20
Classification: H04J

Abstract:
1. An optical network comprising: an optical switch, that has a plurality of input ports and a plurality of output ports, to guide an input optical signal to an output port corresponding to a combination of an input port at which the input optical signal has reached and a wavelength of the input optical signal; a plurality of optical interface devices provided respectively for a plurality of servers and connected to the optical switch; and a manager to manage communication traffic of the plurality of servers, wherein each of the optical interface devices includes a fixed-wavelength optical transmitter and a wavelength tunable optical transmitter, a first optical path is set up via the optical switch by using the fixed-wavelength optical transmitters of the plurality of optical interface devices, the manager identifies first and second optical interface devices from among the plurality of optical interface devices in accordance with the communication traffic of the plurality of servers, a second optical path is set up between the first and second optical interface devices via the optical switch by using the wavelength tunable optical transmitters of the first and second optical interface devices, the first optical interface device controls the transmission wavelength of the wavelength tunable optical transmitter to be a first wavelength assigned to an optical path directed from the first optical interface device to the second optical interface device in the optical switch, and the second optical interface device controls the transmission wavelength of the wavelength tunable optical transmitter to be a second wavelength assigned to an optical path directed from the second optical interface device to the first optical interface device in the optical switch.