预滤波优化对112/224-Gbps光相干传输系统的改进

2013 SBMO/IEEE MTT-S International Microwave & Optoelectronics Conference (IMOC) Pub Date : 2013-10-28 DOI:10.1109/IMOC.2013.6646526

S. H. Linakis, L. Carvalho, C. Franciscangelis, E. P. Silva, J. Diniz, J. Oliveira

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引用次数: 0

摘要

提出了一种基于匹配滤波原理提高112 gb /s RZ-PDM-QPSK和224 gb /s RZ-PDM-16QAM系统性能的方法。在发射端进行了光学预滤波优化，评估了不同的滤波器配置。33 ghz奈奎斯特式光学滤波器被认为是提高112 gb /s和224 gb /s系统性能的最佳解决方案。为了获得优化后系统的OSNR性能，我们还进行了背靠背评估。采用112 gb /s RZ-PDM-QPSK和224 gb /s RZ-PDM-16QAN, OSNR性能分别提高了0.5 dB和1 dB。

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Improvement of 112/224-Gbps optical coherent transmission systems by pre-filtering optimization

We provided an approach to improve 112-Gb/s RZ-PDM-QPSK and 224-Gb/s RZ-PDM-16QAM systems performance, based on the matched-filtering principle. An optical pre-filtering optimization at the transmitter side was performed, evaluating different filter profiles. A 33-GHz Nyquist-like optical filter was found to be the best solution to improve both 112-Gb/s and 224-Gb/s systems performance. We also performed a back-to-back evaluation in order to obtain the OSNR performance for the optimized systems. Improvements of 0.5 dB and 1 dB in OSNR performance were found for 112-Gb/s RZ-PDM-QPSK and 224-Gb/s RZ-PDM-16QAN, respectively.

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2013 SBMO/IEEE MTT-S International Microwave & Optoelectronics Conference (IMOC)

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