Generalized projection retrieval of dispersion scans for ultrashort pulse characterization

TL;DR

This paper introduces a faster generalized projection algorithm for ultrashort pulse characterization using dispersion scans, demonstrating efficiency improvements but with some robustness trade-offs in noisy conditions.

Contribution

A novel, faster retrieval algorithm based on generalized projections for d-scan ultrashort pulse measurement, tested on simulations and experiments.

Findings

Significantly reduced retrieval times.

Effective on simulated and experimental data.

Less robust with noisy traces.

Abstract

We present a retrieval algorithm based on generalized projections for ultrashort pulse characterization using dispersion scan (d-scan). The new algorithm is tested on several simulated cases and in two different experimental cases in the few-cycle regime. The proposed algorithm is much faster and leads to a drastic reduction of retrieval times, but performs less robust in the retrieval of noisy d-scan traces compared to the standard algorithm.