Journal
OPTICS EXPRESS
Volume 29, Issue 19, Pages 30822-30833Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.436229
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Funding
- Contrat de Projets Etat-Region
- European Regional Development (HEAFISY)
- Nord-Pas-de-Calais Regional Council (HEAFISY)
- Agence Nationale de la Recherche [ANR-11-LABX-0007-01, ANR-16-IDEX-0004]
- Agence Nationale de la Recherche (ANR) [ANR-16-IDEX-0004] Funding Source: Agence Nationale de la Recherche (ANR)
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The study demonstrates that geometric parametric instability (GPI) in graded-index multimode fibers is significantly affected by higher-order dispersion. By measuring output spectra for different core radii and using phase-matching arguments and numerical simulations, the peaks generated by GPI are distinguished from other coexisting parametric processes. Furthermore, a non-degenerate GPI process involving two pumps at different wavelengths is highlighted for the first time.
We show that geometric parametric instability (GPI) in graded-index multimode fibers is strongly influenced by higher-order dispersion. By measuring the output spectrum for different core radii, we distinguish peaks generated by GPI from other coexisting parametric processes using phase-matching arguments and numerical simulations. We highlight for the first time a non-degenerate GPI process involving two pumps at different wavelengths. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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