OptFROG - Analytic signal spectrograms with optimized time–frequency resolution

verfasst von
Oliver Melchert, Bernhard Wilhelm Roth, Uwe Morgner, Ayhan Demircan
Abstract

A Python package for the calculation of spectrograms with optimized time and frequency resolution for application in the analysis of numerical simulations on ultrashort pulse propagation is presented. Gabor's uncertainty principle prevents both resolutions from being optimal simultaneously for a given window function employed in the underlying short-time Fourier analysis. Our aim is to yield a time–frequency representation of the input signal with marginals that represent the original intensities per unit time and frequency similarly well. As a use-case, we demonstrate the implemented functionality for the analysis of simulations on ultrashort pulse propagation in a nonlinear waveguide.

Organisationseinheit(en)
PhoenixD: Simulation, Fabrikation und Anwendung optischer Systeme
Hannoversches Zentrum für Optische Technologien (HOT)
Institut für Quantenoptik
Typ
Artikel
Journal
SoftwareX
Band
10
Publikationsdatum
07.2019
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Software, Angewandte Informatik
Elektronische Version(en)
https://doi.org/10.1016/j.softx.2019.100275 (Zugang: Offen)