Vortex algebra by multiply cascaded four-wave mixing of femtosecond optical beams
Date
2014
Authors
Hansinger, Peter
Maleshkov, Georgi
Garanovich, Ivan L.
Skryabin, Dmitry V.
Dreischuh, Alexander
Paulus, Gerhard G.
Neshev, Dragomir
Journal Title
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Volume Title
Publisher
Optical Society of America
Abstract
Experiments performed with different vortex pump beams show for the first time the algebra of the vortex topological charge cascade, that evolves in the process of nonlinear wave mixing of optical vortex beams in Kerr media due to competition of four-wave mixing with self-and cross-phase modulation. This leads to the coherent generation of complex singular beams within a spectral bandwidth larger than 200nm. Our experimental results are in good agreement with frequency-domain numerical calculations that describe the newly generated spectral satellites.
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Source
Optics Express
Type
Journal article
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Access Statement
Open Access
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DOI
10.1364/OE.22.011079