Journal Article10.1063/5.0028713
Correlation between geometric parametric instability sidebands in graded-index multimode fibers
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TL;DR: In this paper, the correlation in energy between the well-separated spectral sidebands through both the scattergrams and the frequency-dependent energy correlation map was investigated and it was shown that conjugate couples are highly correlated while cross-combinations exhibit a very poor degree of correlation.
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Abstract: The spectral analysis of the light propagating in normally dispersive graded-index multimode fibers is performed under initial noisy conditions. Based on the obtained spectra with multiple simulations in the presence of noise, we investigate the correlation in energy between the well-separated spectral sidebands through both the scattergrams and the frequency-dependent energy correlation map and find that conjugate couples are highly correlated while cross-combinations exhibit a very poor degree of correlation. These results reveal that the geometric parametric instability processes associated with each sideband pair occur independently from each other, which can provide significant insights into the fundamental dynamical effect of the geometric parametric instability and facilitate the future implementation of high-efficiency photon pair sources with reduced Raman decorrelations.
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Citations
Origin of spontaneous wave mixing processes in multimode GRIN fibers.
Abdelkrim Bendahmane,Matteo Conforti,Olivier Vanvincq,C. Mas Arabí,Arnaud Mussot,Alexandre Kudlinski +5 more
TL;DR: In this article, the authors show that geometric parametric instability (GPI) in graded-index multimode fibers is strongly influenced by higher-order dispersion, and highlight a non-degenerate GPI process involving two pumps at different wavelengths.
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Oscillating propagation and parametric instability of the partial Gaussian beam in graded-index multimode fibers
TL;DR: In this paper , the authors investigate the input and propagation characteristics and geometric parametric instability of the partial Gaussian beam limited by the fiber face area in a graded-index multimode fiber.
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Correlation Between Multiple Geometric Parametric Instability Sidebands and Sidelobes in Periodically Modulated Graded-Index Multimode Fibers
Guangye Yang,Tong Xu,Xitong Zhu,Xueyun Bai,Haitao Zhou,Zhifang Wu,Sijin Li +6 more
TL;DR: This study investigates the correlation between geometric parametric instability (GPI) sidebands and sidelobes in periodically modulated graded-index multimode fibers, revealing a strong energy correlation between conjugate sidebands and sidelobes, influenced by core modulation period and radius distribution.
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TL;DR: In this paper, a review of numerical and experimental studies of supercontinuum generation in photonic crystal fiber is presented over the full range of experimentally reported parameters, from the femtosecond to the continuous-wave regime.
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Parametric Instabilities in Inhomogeneous Media
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Wavelength-Multiplexed Quantum Networks with Ultrafast Frequency Combs
TL;DR: In this article, a single-step fabrication of a multimode quantum resource from the parametric downconversion of femtosecond frequency combs is demonstrated, where each of the 511 possible bipartitions among ten spectral regions is shown to be entangled.
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Photonic crystal fiber source of correlated photon pairs.
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Observation of Geometric Parametric Instability Induced by the Periodic Spatial Self-Imaging of Multimode Waves
Katarzyna Krupa,Alessandro Tonello,Alain Barthélémy,Vincent Couderc,Badr Mohamed Ibrahim Shalaby,Abdelkrim Bendahmane,Guy Millot,Stefan Wabnitz +7 more
TL;DR: The first experimental demonstration of multiple geometric parametric instability sidebands, generated in the frequency domain through resonant space-time coupling, owing to the natural periodic spatial self-imaging of a multimode quasi-continuous-wave beam in a standard graded-index multimode fiber is presented.