| 摘要 |
Disclosed is a wavelength division multiplexing (WDM) optical transmission system including: an optical transmitter for transmitting, to an optical fiber transmission path, a WDM signal obtained by multiplexing a plurality of optical signals on the optical fiber transmission path in terms of wavelength, the plurality of optical signals respectively having negative chirps; an optical receiver for receiving the WDM signal from the optical fiber transmission path; and at least one relay node which is provided between the optical transmitter and the optical receiver. Each of the relay node and the optical receiver includes a dispersion compensator for compensating a chromatic dispersion suffered in the optical fiber in the immediately preceding transmission span. Moreover, a dispersion adder for beforehand adding a predetermined positive dispersion amount to the WDM signal before transmission is included in the optical transmitter or at least one relay node.
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