OPTICAL TRANSMISSION DEVICE AND OPTICAL TRANSMISSION METHOD Russian patent published in 2013 - IPC H04B10/08 

FIELD: physics.

SUBSTANCE: optical transmission device 100 includes: a Raman light source unit 101 having an excitation light source 101a which emits excitation light for Raman amplification of optical signals, into which is transmitted an optical signal transmitted through a first transmission channel D1, and which outputs said optical signal; a light amplification unit 102, having a detection unit 102a meant for inputting an optical signal from the Raman light source unit 101 through a second transmission channel D2 and, based on this optical signal, for detecting failure in the first transmission channel D1 and the second transmission channel D2; a detection unit 103 meant for detecting failure in the first transmission channel D1 or the second transmission channel D2; a control unit 104 meant for determining the location of a failure based on whether the detection unit 103 detects a failure, when the detection unit 102a detects a failure, and for outputting information on the location of the failure, which indicates the specific location of the failure.

EFFECT: determining the wrong location as the location of a failure.

10 cl, 7 dwg