| 摘要 |
The present invention discloses an optical power monitoring method and apparatus, and relates to the field of optical communications, so that accuracy of optical power monitoring is improved and an application scope of optical power monitoring is expanded. The present invention includes: measuring broadened spectrums of optical signals of monitored channels after performing filtering processing on the optical signals, to obtain a measured broadened spectrum of the optical signals of the monitored channels; constructing a plurality of optical signal power combinations; performing calculation for each optical signal power combination according to a transfer function that indicates the filtering processing, to obtain its corresponding theoretical broadened spectrum of the optical signals of the monitored channels; comparing a plurality of theoretical broadened spectrums with the measured broadened spectrum to find a theoretical broadened spectrum that is closest to the measured broadened spectrum; and determining each hypothetical optical power in an optical signal power combination corresponding to the theoretical broadened spectrum as an actual optical power of an optical signal of a corresponding monitored channel. |
