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- Title
Spectrally-Efficient 17.6-Tb/s DWDM Optical Transmission System over 678 km with Pre-Filtering Analysis.
- Authors
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.
- Abstract
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.
- Subjects
WAVELENGTH division multiplexing; LIGHT transmission; WAVE amplification; LIGHT filters; FM radio receivers; SPECTRUM analysis; SILICA fibers
- Publication
Journal of Microwaves, Optoelectronics & Electromagnetic Applications, 2013, Vol 12, Issue 1, p229
- ISSN
2179-1074
- Publication type
Article
- DOI
10.1590/s2179-10742013000100018