Abstract
We report on a full C+L-band erbium-doped fiber amplified (EDFA) submarine transmission experiment of 178 wavelength-division multiplexed channels of 49-GBd polarization multiplexed 16QAM signals, achieving 54.2 Tb/s after 6600 km, with a record per-channel average net bit rate of 304.5 Gb/s. Digital backpropagation and time-domain perturbative nonlinearity compensation were alternatively applied to all channels and their respective benefits, in terms of throughput increase, reach increase, and complexity, were addressed. Multiple-rate spatially coupled low density parity check forward error correction codes with a novel rate optimization algorithm were employed. The power consumption of the power feeding equipment of our EDFA-only amplification scheme was analyzed and compared with that of hybrid EDFA Raman amplification. We also provided numerical and theoretical performance analysis of nonlinear uncompensated/ compensated systems.
| Original language | English |
|---|---|
| Article number | 2518929 |
| Pages (from-to) | 1886-1895 |
| Number of pages | 10 |
| Journal | Journal of Lightwave Technology |
| Volume | 34 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 15 Apr 2016 |
| Externally published | Yes |
Keywords
- Adaptive multi-rate FEC
- Digital backpropagation
- PDM 16-QAM
- Perturbative nonlinear compensation
- Rate optimization
- Spatially-coupled LDPC
- Submarine transmission
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