Optical communication device, control method and optical communication system

An optical communication device connected to a plurality of user devices, the optical communication device comprising:

• a monitor that detects light which is output from a user device that is connected;
• a user switch that switches the user device to which the monitor is connected each time a predetermined condition is satisfied,
• a controller that connects, by using a switch based on correspondence between the plurality of user devices and a plurality of ports of the switch, the user device connected to the monitor and a control transceiver while maintaining the light, upon detection of the light by the monitor;
• an acquirer that acquires, via the control transceiver connected to the user device by the switch while maintaining the light, communication destination information indicating a communication destination to which the user device requests connection;
• an assigner that assigns a wavelength to the user device according to the communication destination information acquired by the acquirer;
• and
• a notifier that notifies the user device of wavelength information indicating the wavelength assigned by the assigner via the control transceiver.

A control method performed by an optical communication device connected to a plurality of user devices, the method comprising:

• detecting by a plurality of monitors, light which is output from the plurality of user devices that are connected, respectively;
• connecting by a controller, by using a switch based on correspondence between the plurality of monitors and a plurality of ports of the switch, a user device corresponding to a monitor that detects the light and a control transceiver while maintaining the light, upon detection of the light by any of the plurality of monitors in the detecting;
• acquiring by an acquirer, via the control transceiver connected to the at least one user device by the switch while maintaining the light, a communication destination to which the user device requests connection;
• assigning by an assigner, a wavelength to the user device according to the communication destination acquired in the acquiring;
• and
• notifying by a notifier, the user device of wavelength information indicating the wavelength assigned in the assigning via the control transceiver.