| 摘要 |
PURPOSE: A device and a method for monitoring optical power of an optical transmission system are provided to eliminate an external change factor in an optical power monitoring structure for transmission signals of a WDM(Wavelength Division Multiplexing) device, so as to correctly measure the optical power. CONSTITUTION: An amplification unit(100) amplifies optical signals received from a remote station, and extracts optical signals in modules processing the optical signals to perform internal optical power monitoring. An optical power monitoring unit(200) performs optical power monitoring in the external of the amplification unit(100), to measure entire optical power of the optical signals and optical power/wavelength values according to each channel. And a monitoring control unit(300) corrects the measured optical power value externally monitored in the optical power monitoring unit(200), with reference to a measured optical power value internally monitored in the amplification unit(100), while providing a monitoring control function in a system. |
