Freiburg 2024 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 39: Poster V

Q 39.9: Poster

Wednesday, March 13, 2024, 17:00–19:00, Aula Foyer

Higher Order Mode Supercontinuum Generation Through Nano-Printed Meta-Fiber — •Shahrzad Hosseinabadi, Mohammadhossein Khosravi, Matthias Zeisberger, Torsten Wieduwilt, and Markus Schmidt — Leibniz IPHT, Jena, Germany

Optical fibers, with their unique light guiding properties, have transformed modern society. Besides the common fundamental mode, fibers also support higher-order modes (HOMs), gaining attention for different applications. In nonlinear frequency conversion research, HOMs play a crucial role, offering access to unique dispersion landscapes. This enables applications such as broadband supercontinuum generation and exploration of novel nonlinear effects. However, efficiently exciting or converting HOMs poses a challenge due to the need for precise matching of modal properties, especially in nonlinear photonics. Current approaches, like spatial light modulators and waveplates, have limitations such as being costly, poorly integrated, and require extensive computer control and additional alignment. A promising solution involves dielectric nanostructures, specifically holograms and metasurfaces, offering unprecedented beam shaping capabilities with minimal losses. These approaches, based on well-designed flat elements, successfully modify intensity, phase distributions, and polarization, opening up possibilities for various applications. Our study focuses on investigating the potential of efficiently HOMs in nonlinear optical fibers. By leveraging technology of diffractive lenses, we aim to enhance the performance of HOMs, by proposing a highly integrated device for nonlinear photonics applications.