Multimode devices and components have attracted considerable attention in the last years, and different research topics and themes have emerged very recently. The multimodality can be seen as an additional degree of freedom in designing devices, thus allowing for the Read More …
Autore: laboratorio
Characterization of Multimode Soliton Self-Frequency Shift
Optical solitons in multimode fibers exhibit complex dynamics, and peculiar characteristics in terms of pulse durationand energy, which distinguish them from the single-mode counterpart. We propose a theory for Raman-induced soliton selffrequency shift in multimode fibers, that is compared against Read More …
2022 Machine Learning Photonics School
The school brings together experts in emerging photonic technologies, machine learning techniques, and fundamental physics who will share with young researchers their knowledge and interdisciplinary approaches for understanding and designing complex photonic systems and their practical applications. In the new era Read More …
Multimode Photonics Workshop 2022
Discover how controlling self-organization phenomena in multimode photonics systems is the keystone for the next generation of internet and computing technologies. 22 – 25 August 2022 At Department of Information Engineering, Electronics, and Telecommunications, Sapienza University of Rome, Via Eudossiana Read More …
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Thermalization of orbital angular momentum beams in multimode optical fibers
We report on the thermalization of light carrying orbital angular momentum in multimode optical fibers, induced by nonlinear intermodal interactions. A generalized Rayleigh-Jeans distribution of asymptotic mode composition is obtained, based on the conservation of the angular momentum. We confirm Read More …
Multimode soliton collisions in graded-index optical fibers
In this work, we unveil the unique complex dynamics of multimode soliton interactions in graded-index optical fibers through simulations and experiments. By generating two multimode solitons from the fission of an input femtosecond pulse, we examine the evolution of their Read More …
Statistical mechanics of beam self-cleaning in GRIN multimode optical fibers
Since its first demonstration in graded-index multimode fibers, spatial beam self-cleaning has attracted a growing research interest. It allows for the propagation of beams with a bell-shaped spatial profile, thus enabling the use of multimode fibers for several applications, from Read More …
Multiphoton ionization of standard optical fibers
Atoms ionization by the simultaneous absorption of multiple photons has found applications in fiber optics, where it leads to unique nonlinear phenomena. To date, studies of the ionization regime have been limited to gas-filled hollow-core fibers. Here, we investigate multiphoton Read More …