Submarine optical branching device, submarine optical cable system, switching method and program

摘要

In the submarine optical fiber cable system in which the end stations are connected by a plurality of optical fiber transmission lines, the optical fiber transmission line is connected to the optical fiber transmission line for branching without increasing the number of components between the submarine optical branching device and the branch station as much as possible.The submarine optical branching device 1 comprises a control section (1a) and a switching section (1b).The switching portion (1b) is connected to a plurality of first optical fiber transmission lines connected to the first end station, a plurality of second optical fiber transmission lines connected to the second end station, and a third optical fiber transmission line connected to the third end station, and switches the transmission path of the wavelength multiplexed optical signal.The control section (1a) controls switching of the transmission path by the switching section (1b).The switching portion (1b) has a function of connecting the plurality of first optical fiber transmission lines to the plurality of second optical fiber transmission lines.The switching unit (1b) has a function of switching one of the plurality of first optical fiber transmission lines to connect the third optical fiber transmission line to the third optical fiber transmission line.