The soliton optical phase stability versus amplified spontaneous noise is investigated in a recirculation loop experiment in the presence of in-line filters. The behavior of phase fluctuations is shown to be in good agreement with numerical simulations. The phase standard deviation is kept below 0.15/spl times//spl pi/ for distances up to 8000 km. We, therefore, demonstrate the feasibility of phase-shift keying on solitons for long-haul transmission systems.
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机译：在在线滤波器存在的情况下，在再循环回路实验中研究了孤子光学相位稳定性与放大的自发噪声的关系。相位波动的行为与数值模拟显示出很好的一致性。对于长达8000 km的距离，相位标准偏差保持在0.15 / spl次// spl pi /以下。因此，我们证明了在长距离传输系统上对孤子进行相移键控的可行性。
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