Journal
OPTICS LETTERS
Volume 47, Issue 10, Pages 2522-2525Publisher
Optica Publishing Group
DOI: 10.1364/OL.456521
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Funding
- Narodowe Centrum Nauki [2018/30/E/ST7/00862, 2016/22/A/ST7/00089]
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This study investigates the nonlinear frequency conversions between the six polarization modes of a two-mode birefringent fiber. The aim is to demonstrate that the selective excitation of different combinations of linearly polarized spatial modes at the pump wavelength initiates distinct intermodal-vectorial four-wave mixing processes. The theoretical predictions are verified through numerical simulations and confirmed experimentally.
This study investigates the nonlinear frequency conversions between the six polarization modes of a two-mode birefringent fiber. The aim is to demonstrate that the selective excitation of different combinations of linearly polarized spatial modes at the pump wavelength initiates distinct intermodal-vectorial four-wave mixing processes. In particular, this study shows that exciting two orthogonally polarized LP01 and LP11 modes can lead to the simultaneous generation of up to three pairs of different spatial modes of orthogonal polarizations at different wavelengths. The role of the phase birefringence of the spatial modes in the phase matching of such a four-wave mixing process is explained. Moreover, the theoretical predictions are verified through numerical simulations based on coupled nonlinear Schrodinger equations, and are also confirmed experimentally in a commercially available birefringent fiber. (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
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