title: Signal-to-noise considerations in fiber links with periodic or distributed optical amplification.
abstract: The detected signal-to-noise power ratio is evaluated for fiber links with periodic amplification. It is shown that the highest ratio is achieved in the limit of a distributed amplifier (g = alpha), but that, alternatively, periodic amplification at intervals of alpha(-1) entails a penalty of less than 2 dB compared with the (ideal) distributed case.
authors.forename: A
authors.initials: A
authors.lastname: Yariv