| 摘要 |
The transmission system carries optical signals (S) with phase shift between pulses. At the end of the long distance optical link (L) there is an optical corrector device (FG) to compensate the spectral widening signal (S). <??>The transmission system carries optical signals (S) with phase control, modulated in amplitude. The signals present an optical phase shift in each low level pulse which precedes or succeeds a high level pulse. The system includes an optical link (L) and an optical corrector device (FG), in order to enable a strong transmission power. The optical corrector device (FG) applies an optical filtering to the signal (R) provided on the output of the link and/or on one or more connection points (L). This serves to compensate the spectral widening of the phase controlled signal (S), which may occur due to phase auto-modulation in the course of the transmission. |
