| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical communication system such that the location of error occurrence is easy. SOLUTION: A optical transmitter 1 includes signal transmitting parts 4-1 to 4-n for outputting optical transmission signals 21-1 to 21-n, a sending end control part 6 for outputting control-use optical signals 22 to control an optical receiver 3, and a wavelength multiplexing part 5 for multiplexing the optical transmission signals 21-1 to 21-n and the control-use optical signals 22 to output them. An optical receiver 3 includes wavelength demultiplexing part 11 for demultiplexing optical transmission signals with wavelength multiplexed to retrieve optical reception signals 21-1' to 21-n' and control-use optical reception signals 22', signal receiving parts 12-1 to 12-n, and a receiving end control part 13. When signal receiving parts 12-1 to 12-n have not normally received optical reception signals 21-1' to 21-n,' a receiving end control part 13 transmits a receiving end warning signal 27 to a control device 14 based on warning information. |
