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Title: Experimental investigation on the nonlinear tolerance of root M-shaped pulse in spectrally efficient coherent transmissions
Authors: Xu, X
Zhuge, Q
Châtelain, B
Chagnon, M
Morsy Osman, M
Malekiha, M
Qiu, M
Gao, Y
Wang, W
Plant, DV
Issue Date: 2015
Publisher: Optical Society of America
Source: Optics express, 2015, v. 23, no. 2, p. 882-894 How to cite?
Journal: Optics express 
Abstract: We experimentally demonstrate improved intra-channel nonlinearity tolerance of the root M-shaped pulse (RMP) with respect to the root raised cosine (RRC) pulse in spectrally efficient 128 Gbit/s PDM-16QAM coherent transmission systems. In addition we evaluate the impact of dispersion map and fiber dispersion parameter on the intra-channel nonlinearity tolerance of the RRC pulse and the RMP via both simulation and experimentation. The RMP is shown to have a better nonlinear tolerance than the RRC pulse for most investigated scenarios except for links with zero residual dispersion percentage per span or the zero dispersion region of a fiber. Therefore, the RMP is suitable for extending the maximum reach of spectrally efficient coherent transmission systems in legacy links in addition to currently intensively studied standard single mode fiber (SSMF) based dispersion unmanaged links.
EISSN: 1094-4087
DOI: 10.1364/OE.23.000882
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