| 摘要 |
PURPOSE:To transmit the optical signal of high quality by detecting the distortion component of the optical signal emitted from an optical transmission means in a distortion detection means, reducing the distortion component from an input signal and inputting the input signal whose distortion component is reduced to the optical transmission means. CONSTITUTION:The distortion detection means 19 detects the distortion component of the optical signal, the distortion component is reduced from the input signal and the input signal whose distortion component is reduced is inputted to the optical transmission means 16. When the distortion component is added to the optical signal from the optical transmission means 16, the distortion component is cancelled, and the optical signal becomes equal to a case when there is no distortion component. Thus, the influence of the distortion component is reduced, and the optical signal of high quality can be outputted. |
