Polarization Independent All-Optical 3R Regeneration Based on the Kerr Effect in Highly Nonlinear Fiber and Offset Spectral Slicing
Polarization Independent All-Optical 3R Regeneration Based on the Kerr Effect in Highly Nonlinear Fiber and Offset Spectral Slicing
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DOI：
10.1109/jstqe.2007.915393
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发表时间：
2008-06
影响因子：
4.9
通讯作者：
C. Ito;J. Cartledge
中科院分区：
文献类型：
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作者：
C. Ito;J. Cartledge
给出了一种不依赖偏振的全光3R再生器的详细实验表征。该再生器由用于时钟恢复的自脉冲分布反馈激光器、用于重定时的高非线性光纤（HNLF）交叉相位调制和偏置频谱切片以及用于重塑的HNLF自相位调制和偏置频谱切片组成。该再生器的一个关键特点是，与传统的依赖于极化的实现相比，实现了与极化无关的操作，而没有额外的复杂性。根据输入信号的重要特性评估再生器的性能，包括光信噪比、由残余群速度色散和偏振模式色散引起的波形失真、偏振状态、功率和波长。通过对关键设计参数的仔细关注，实现了优异的性能。
A detailed experimental characterization of a polarization-independent all-optical 3R regenerator is presented. The regenerator is comprised of a self-pulsating distributed feedback laser for clock recovery, cross-phase modulation in a highly nonlinear fiber (HNLF) and offset spectral slicing for retiming, and self-phase modulation in an HNLF and offset spectral slicing for reshaping. A key feature of the regenerator is that polarization-independent operation is achieved without additional complexity as compared to a conventional polarization-dependent implementation. The regenerator performance is assessed for important properties of the input signal, including the optical signal-to-noise ratio, waveform distortion due to residual group velocity dispersion and polarization mode dispersion, state-of-polarization, power, and wavelength. With careful attention to key design parameters, excellent performance is achieved.