| 摘要 |
An optical wavelength-division multiplexing transmission system includes an optical wavelength-division multiplexing transmitter, an optical wavelength-division multiplexing receiver, and a plurality of optical amplifiers disposed on an optical transmission line connecting the transmitter and receiver. Optical filters are disposed on said optical transmission line for flattening the pass band gain characteristics of a predetermined number of optical amplifiers. It is desirable that one optical filter is disposed for every one to thirty amplifiers. The optical wavelength-division multiplexing transmission system of the present invention can thus flatten accumulated gain characteristics of the amplifiers so that several different wavelengths can be transmitted without attenuation.
|
