Open AccessSpectrum estimation from truncated, non-linearly phase shifted or irregularly sampled interferograms
Author(s) -
Alain Kattnig,
Julien Jaeck,
Olivier Gazzano,
Jérôme Primot
Publication year - 2020
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.392064
Subject(s) - optics , interferometry , spectrometer , redundancy (engineering) , phase (matter) , computer science , sampling (signal processing) , physics , algorithm , remote sensing , geology , quantum mechanics , detector , operating system
For performance or speed reasons, many types of spectrometers record only part of the interferogram thanks to its redundancy. Here we examine the consequences of this choice on the resulting spectrum. We jointly explore other sources of error also encountered on spectrometers, such as the irregular sampling of the interferometer and the non-linear phase of the spectrum. Then we revisit and improve the classical processing chain.