| 摘要 |
A method of mitigating the effect of deterministic (only slowly changing) pulse distortions along an optical fiber communications link transmitting a train of pulses, and apparatus for performing it. Plural copies of the pulse train are made and are all coherently added together with the original train after delaying each copy by a different amount. The amplitude and phase of each copy are independently adjusted, normally by a computer, to optimize the resulting pulse shape. The technique is capable of mitigating (not totally eliminating) distortions of diverse origin, including but not limited to polarization mode dispersion, chromatic dispersion, multiple reflections, and self-phase modulation, even if they interact with each other.
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