| 摘要 |
PURPOSE:To obtain an error detection method using a multi-wavelength light source, its device and system in which problems of a deteriorated throughout and a complicated coding circuit are settled. CONSTITUTION:An optical signals are sent from a light source 1 emitting lights of plural wavelengths and a dissidence detector 6 detects dissidence among received signals of each wavelength to detect a transmission error. A transmission error is detected by detecting an error in the code rule in coding by that phases of optical signals sent from the light source emitting lights of plural wavelengths are shifted and the shifted signals are overlapped with each other. Thus, the transmission error is detected without addition of an error check code. |
