摘要 |
PROBLEM TO BE SOLVED: To provide a wavelength multiplexing optical network system capable of improving security in wavelength multiplexing optical communication.SOLUTION: The wavelength multiplexing optical network system 50 according to the present invention comprises a first terminal apparatus A, a second terminal apparatus B connected to the first terminal apparatus, a branching device 101 connected between the first terminal apparatus and the second terminal apparatus, a third terminal apparatus C connected to the branching device, and a plurality of relay devices R1 to R8 connected between each of the first to third terminal apparatuses and the branching device 101. The branching device includes signal separating means 301 for separating a first signal S for the second terminal apparatus and a second signal L for the third terminal apparatus, the first signal S being multiplexed and output from the first terminal apparatus, signal deterioration means 312, 302 for degrading the separated first signal, and signal multiplexing means 303 for multiplexing the deteriorated first signal and the second signal and outputting the multiplexed signal to the third terminal apparatus via the relay device.SELECTED DRAWING: Figure 1 |