Source: http://opticjourn.ru/annotations_03_2019/1828-dispersiya-i-kompensaciya-nelineynyh-iskazheniy-v-vysokoskorostnoy-32215200-gbs-dwdm-sisteme-peredachi-dannyh-s-fazosopryazhennoy-obratnoy-volnoy.html
Timestamp: 2019-04-19 13:24:36+00:00

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Проанализирована эффективность нескольких способов компенсации искажений в каналах высокоскоростных DWDM-систем. Предложен новый гибридый подход, включающий комбинацию методов оптического обратного распространения и фазсопряженных обратных волн, обеспечивающих компенсацию в отсутствие сигнала накачки. Преимуществами системы являются возможность непосредственного встраивания в передающие линии, а также уменьшение числа используемых компонентов. Дополнительно используется компенсация дисперсии посредством компенсационного дисперсионного волокна. Проведена оценка работоспособности этих методов применительно к 32-канальной DWDM-системе, в которой каждый канал модулируется в формате квадратурной фазовой манипуляции и передает данные со скоростью 200 Гб/с на канал. Сравнительная оценка проведена с использованием фактора качества (Q) и индикаторных диаграмм.
Ключевые слова: оптическая волоконная связь, оптическая связь, нелинейная оптика, оптическое волокно, дисперсия, фазовое сопряжение.
We have analyzed the performance of several distortion compensation techniques in the scenario of ultra-high speed dense wavelength division multiplexed channels. A new hybrid approach, which is a combination of optical back propagation and phase conjugation twin waves, is proposed for the compensation without any pump signal. One of the advantages of the proposed techniques lies not only in their ability to be implemented inline but also they will reduce the number of components in the transmission systems. In addition, a dispersion compensation technique has been applied by using a dispersion compensating fiber. The performance of these different techniques is evaluated in a system of 32 channels, in which each channel is modulated with quadrature phase shift keying format and transmits the data at a rate of 200 Gb/s per channel. We performed a comparative analysis of these techniques by evaluating their performance in terms of quality factor and eye diagrams.
Keywords: optical fiber communication, optical communication, nonlinear optics, optical fiber, phase conjugation dispersion.
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