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arXiv · 2608.11754

Characterizing Nonlinearities in IM-DD Links via the Best Linear Approximation: Distortion Analysis and Modulation Optimization

Sebastian Fraga Fernández·Leonardo Minelli·Fernando de Bernardinis·Felipe Villenas·Yunus Can Gültekin·Alex Alvarado
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Abstract

We use the best linear approximation (BLA) to characterize nonlinearities in IM-DD links. The orthogonal nonlinear distortion is shown to be non-Gaussian. The BLA is used to approximate the optimum modulation depth for different equalizer structures.

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Sebastian Fraga Fernández, Leonardo Minelli, Fernando de Bernardinis, Felipe Villenas, Yunus Can Gültekin, Alex Alvarado. 2026-08-12. Characterizing Nonlinearities in IM-DD Links via the Best Linear Approximation: Distortion Analysis and Modulation Optimization. https://arxiv.org/abs/2608.11754

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