Four-wave mixing in long wavelength III-nitride QD-SOAs

TL;DR

This paper analyzes four-wave mixing in long wavelength III-nitride quantum dot semiconductor optical amplifiers, highlighting effects of doping, carrier heating, and material composition on efficiency and nonlinear behavior.

Contribution

It introduces a comprehensive simulation of four-wave mixing in III-nitride QD SOAs, incorporating nonlinear propagation, rate equations, and effects like doping and carrier heating.

Findings

InN QD SOAs exhibit higher efficiency.

P-doping enhances amplifier efficiency.

Carrier heating significantly impacts nonlinear behavior.

Abstract

Four wave mixing analysis is stated for quantum dot semiconductor optical amplifiers (QD SOAs) using the propagation equations (including nonlinear propagation contribution) coupled with the QD rate equations under the saturation assumption. Long wavelength III-nitride InN and AlInN QD SOAs are simulated. Asymmetric behavior due to linewidth enhancement factor is assigned. P-doping increases efficiency. Lossless efficiency for InAlN QDs for longer radii is obtained. Carrier heating is shown to have a considerable effect and a detuning dependence is expected at most cases. InN QD SOAs shown to have higher efficiency.