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提出了一种新型的基于数据抽运的光纤光参量放大(FOPA)的多波长(4×40 Gb/s)全光3R再生实现方案。与已有的利用光参量放大技术再生不同的是,所提方案利用4路恶化的数据信号作为抽运光,同时,分析了其再生机理。实验结果表明,对于“1”码和“0”码的噪声均有较好的抑制。利用波长变换和高Q值(1000)的法布里-珀罗(F-P)滤波器进行时钟提取,得到均方根(RMS)抖动仅为180 fs的高质量时钟。在多波长全光判决部分,采用了正交极化和双向注入的方法来抑制4个恶化信号之间的相互串扰。最终实现了4路信号的信噪比改善值分别达到2.21、2.79、2.72和1.99的再生实验。
A novel multi-wavelength (4 × 40 Gb / s) all-optical 3R regeneration scheme based on fiber optic parametric amplifier (FOPA) with data pumping is proposed. Compared with the existing regeneration using optical parametric amplification, the proposed scheme uses 4 deteriorated data signals as pumping light and analyzes its regeneration mechanism. The experimental results show that the noise of the “1” code and “0” code are better suppressed. Clock extraction using wavelength conversion and a high-Q (1000) Fabry-Perot (F-P) filter yields a high quality clock with RMS jitter of only 180 fs. In the multiwavelength all-optical decision part, the method of orthogonal polarization and bidirectional injection is adopted to suppress the mutual crosstalk between the four degraded signals. Finally, the signal to noise ratio of the 4-channel signal is improved to 2.21, 2.79, 2.72 and 1.99 respectively.