Patent ID: 8811817
Filing Date: 2014-08-19
Classification: H04J

Abstract:
1. An optical signal transmission device, comprising: M (where M is an integer equal to or greater than 2) optical output units that output optical signals having different wavelengths; an optical switch unit that comprises M input ports respectively connected to said M optical output units, M output ports, and a switch unit that switches connections between said input ports and said output ports; and a wavelength multiplexing unit that has M acceptance ports respectively connected to said M output ports, and N (where N is an integer equal to or greater than 2 and equal to or smaller than M) forward ports switchably connected to said acceptance ports corresponding to wavelengths of optical signals that are input to said acceptance ports, said wavelength multiplexing unit transmitting multiplexed optical signals corresponding to optical signals accepted by said acceptance ports from said forward ports, wherein when said switch unit performs a combining connection in which Y (where Y is an integer equal to or greater than 2 and equal to or smaller than M) particular input ports from among said M input ports are connected to one particular output port from among said M output ports, said switch unit combines Y optical signals that are input to said Y particular input ports in order to generate a combined signal, and outputs the combined signal to said particular output port.