Reducing bit-error rate with optical phase regeneration in multilevel modulation formats.
Reducing bit-error rate with optical phase regeneration in multilevel modulation formats.
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DOI：
10.1364/ol.38.005357
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发表时间：
2013-12
期刊：
影响因子：
3.6
通讯作者：
G. Hesketh;P. Horák
中科院分区：
文献类型：
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作者：
G. Hesketh;P. Horák
我们从理论上研究了在长距离光纤链路中使用全光相位再生的好处。我们还介绍了一种不需要相位到幅度噪声转换就能进行相位再生的器件的设计。数值模拟了波分复用光纤通信系统在多个光纤段进行周期性再放大时的误码率，并比较了采用新设计和现有设计时，在传输距离减半的情况下采用和不采用相位再生的结果。根据调制格式的不同，我们的结果表明，全光相位再生可以将误码率降低高达两个数量级，并且与现有技术相比，幅度保持设计可以将误码率降低50%。
We investigate theoretically the benefits of using all-optical phase regeneration in a long-haul fiber optic link. We also introduce a design for a device capable of phase regeneration without phase-to-amplitude noise conversion. We simulate numerically the bit-error rate of a wavelength division multiplexed optical communication system over many fiber spans with periodic reamplification and compare the results obtained with and without phase regeneration at half the transmission distance when using the new design or an existing design. Depending on the modulation format, our results suggest that all-optical phase regeneration can reduce the bit-error rate by up to two orders of magnitude and that the amplitude preserving design offers a 50% reduction in bit-error rate relative to existing technology.