Performance Implications of Cascaded ROADMs on DP 64-QAM Systems with Transceiver Noise

Frontiers in Optics + Laser Science 2022 (FIO, LS)（2022）

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摘要

The effect of bandwidth narrowing due to cascaded ROADMs is investigated for DP 64-QAM systems impacted by transceiver noise. Data-aided DSP is used to cope with the reduction in total SNR and to mitigate the filtering-induced signal distortion. For a given channel SNR, the adverse effects of bandwidth narrowing are more pronounced.

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关键词

cascaded roadms,noise

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