Spectrally-efficient 17.6-Tb/s DWDM optical transmission system over 678 km with pre-filtering analysis

Carvalho, L. H. H., Silva, E. P., Silva, R., Perin, J. P. K, Oliveira, J. C. R. F., Silva, M. L., Cardoso, P. P. G., Paradisi, A.

Spectrally-efficient 17.6-Tb/s DWDM optical transmission system over 678 km with pre-filtering analysis

AUTOR(ES)

Carvalho, L. H. H., Silva, E. P., Silva, R., Perin, J. P. K, Oliveira, J. C. R. F., Silva, M. L., Cardoso, P. P. G., Paradisi, A.

FONTE

J. Microw. Optoelectron. Electromagn. Appl.

DATA DE PUBLICAÇÃO

2013-12

RESUMO

We present and analyze a 17.6-Tb/s DWDM optical transmission composed of 79 channels with 224-Gb/s RZ-DP-16QAM modulation format per-channel and coherent detection. A maximum reach of 678 km is obtained with an optical recirculation loop composed by 226 km of pure-silica core fibers and EDFA amplification only in a 50-GHz grid system with spectral efficiency of 4.2-b/s/Hz. Also, a 25-GHz Gaussian optical pre-filter is applied to each channel and the same reach of 678 km is obtained in a 37.5-GHz channel grid system with spectral efficiency of 5.6-b/s/Hz. These results demonstrate a 33% system capacity improvement without transmission penalties.