Analytical approach of Brillouin Amplification over threshold

TL;DR

This paper presents an analytical model for Brillouin fiber amplifiers that accurately predicts gain across various regimes, validated through numerical and experimental methods, aiding in performance optimization.

Contribution

The paper introduces a closed-form analytical model for Brillouin amplification that includes material loss and is validated for different pump regimes.

Findings

Model accurately predicts gain in weak pump, high gain, and saturation regimes.

Validation confirms the model's reliability across operational conditions.

Enables better design and optimization of Brillouin fiber amplifiers.

Abstract

We report on an accurate closed form analytical model for the gain of a Brillouin fiber amplifier that accounts for material loss in the depleted pump regime. We determined the operational model limits with respect to its relevant parameters and pump regimes through both numerical and experimental validation. As such, our results enable accurate performance prediction of Brillouin fiber amplifiers operating in the weak pump, high gain, and saturation regimes alike.