Abstract
All-optical regeneration of 2 × 10-Gb/s RZ-OOK polarization-division-multiplexed (PDM) signals is demonstrated through a single polarization nonlinear loop mirror configuration. PDM signals with orthogonal polarization states are regenerated simultaneously and reassembled automatically. Up to 3.0-dB eye-diagram-based signal-to-noise-ratio (SNR) improvement is achieved for both channels with the input SNR of 6.7 dB. Such scheme is also capable of mitigating the polarization-mode-dispersion (PMD) effect for PDM signals in the presence of up to 6.3-ps DGD.
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