OptFROG - Analytic signal spectrograms with optimized time-frequency
resolution
release_nv4qdfxl5jc3tp5p4ajskbyosu
by
O. Melchert, B. Roth, U. Morgner, A. Demircan
2018
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 use-case we demonstrate the implemented functionality for the analysis of
simulations on ultrashort pulse propagation in a nonlinear waveguide.
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1809.00374v1
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