Optical transmission system, optical transmission apparatus and optical transmission method

An optical transmission device in an optical transmission system comprising one or more node devices provided in a carrier network, a control device configured to control the one or more node devices, a user-side optical communication device provided outside the carrier network, a first optical transmission line configured to connect the user-side optical communication device and at least one node device of the one or more node devices, and a second optical transmission line configured to connect node devices, the optical transmission device comprising:

• a multiple-lane processor configured to acquire, in response to a request of connection request data, information regarding a plurality of wavelengths to be used for communication of the user-side optical communication device, the information being calculated in a case where a first transmission mode to be used for communication of the user-side optical communication device does not satisfy the request of connection request data, and generate optical signals of a plurality of wavelengths by using an optical signal transmitted from the user-side optical communication device or a transmission signal input to the user-side optical communication device on a basis of the acquired information regarding the plurality of wavelengths;
• and
• a wavelength multiplexer/demultiplexer configured to generate a multiplex signal by multiplexing optical signals of a plurality of wavelengths generated by the multiple-lane processor and transmit the generated multiplex signal to a communication partner of the user-side optical communication device.

A control method in an optical transmission system comprising one or more node devices provided in a carrier network, a control device configured to control the one or more node devices, a user-side optical communication device provided outside the carrier network, a first optical transmission line configured to connect the user-side optical communication device and at least one node device of the one or more node devices, and a second optical transmission line configured to connect node devices, an optical transmission method comprising:

• specifying a first transmission mode to be used for communication of the user-side optical communication device in response to a request of connection request data, acquiring information regarding a plurality of wavelengths to be used for communication of the user-side optical communication device in a case where the specified first transmission mode does not satisfy the request of connection request data, and notifying the acquired information regarding the plurality of wavelengths;
• generating optical signals of a plurality of wavelengths by using an optical signal transmitted from the user-side optical communication device or a transmission signal input to the user-side optical communication device on a basis of the notified information regarding the plurality of wavelengths;
• and
• multiplexing the generated optical signals of the plurality of wavelengths to generate a multiplex signal, and transmitting the generated multiplex signal to a communication partner of the user-side optical communication device.