论文信息 - Comparison of RZ and NRZ formats in 112-Gb/s PDM-QPSK long haul coherent transmission systems

Comparison of RZ and NRZ formats in 112-Gb/s PDM-QPSK long haul coherent transmission systems

We show that 112-Gb/s PDM-QPSK coherent transmission systems with RZ pulse shape have better tolerance to ROADM filtering than NRZ, and time-interleaved RZ-PDM-QPSK outperform NRZ-PDM-QPSK in nonlinear transmission even with tight filtering.

S. Chandrasekhar | Chongjin Xie | Greg Raybon

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