Abstract

The limits of narrowband Brillouin gain improving the carrier to noise ratio (CNR) of spectral lines in coherent communications is evaluated. Extrapolation from experiments with 48 Gb/s 64-QAM signals predict allowing an input CNR as low as ≈19 dB/0.1 nm for minimal bit-error-rate degradation.

© 2019 The Author(s)

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