volume | PIER Journals

Abstract

An original computational framework is developed to simulate the propagation of ultrashort laser pulses with arbitrary temporal and spectral profiles through uniform linear dielectric materials. The study investigates how spectral phase sampling during propagation affects computational efficiency and accuracy. The proposed approach enables a comprehensive analysis of ultrashort pulse evolution in both the time and frequency domains. To demonstrate its effectiveness, the algorithm is applied to various propagation phenomena, such as temporal and spectral shifts, pulse broadening, asymmetric distortions, and chirping in dispersive media, using a wavelet-based time-frequency decomposition.

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Dr. Mounir Khelladi

Dr. Djelloul Aissaoui