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)