Noise accumulation and BER estimates in concatenated nonlinear optoelectronic repeaters

@article{Ohlen1997NoiseAA,
  title={Noise accumulation and BER estimates in concatenated nonlinear optoelectronic repeaters},
  author={Peter Ohlen and Eilert Berglind},
  journal={IEEE Photonics Technology Letters},
  year={1997},
  volume={9},
  pages={1011-1013}
}
A simplified analysis of noise in concatenated nonlinear analog optoelectronic repeaters is conducted. We investigate different shapes of the nonlinearity and show that the bit-error-rate (BER) accumulation can be reduced significantly compared to a linear scheme, even with a partial nonlinearity. The results are also compared with a corresponding optically amplified linear system at 10 Gb/s. 
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