Research

Degenerate four-wave mixing of optical vortices assisted by self-phase and cross-phase modulation


Reference:

Maleshkov, G., Hansinger, P., Garanovich, I. L., Skryabin, D., Neshev, D. N., Dreischuh, A. and Paulus, G. G., 2011. Degenerate four-wave mixing of optical vortices assisted by self-phase and cross-phase modulation. Proceedings of SPIE - The International Society for Optical Engineering, 7747, 77471E.

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Official URL:

http://dx.doi.org/10.1117/12.881860

Abstract

We study theoretically the non-phase-matched degenerate four-wave mixing of type 1 2 s = 21-2, involving beams carrying two-dimensional spatial phase dislocations in the form of singly-charged optical vortices (OVs). Accompanying third-order nonlinear processes in the non-resonant nonlinear medium (NLM), which are accounted for, are self- and cross-phase modulation. In the case of pump OV beams with identical topological charges the model predicts the generation of signal beams carrying OVs of the same charge. If the pump beams carry OVs with opposite charges, the generated signals are predicted to carry triply charged vortices which, in the case of a non-negligible initial free-space propagation from the plane of vortex generation to the NLM, decay inside the NLM into three singly-charged vortices with highly overlapping cores.

Details

Item Type Articles
CreatorsMaleshkov, G., Hansinger, P., Garanovich, I. L., Skryabin, D., Neshev, D. N., Dreischuh, A. and Paulus, G. G.
DOI10.1117/12.881860
DepartmentsFaculty of Science > Physics
Research CentresCentre for Photonics and Photonic Materials
RefereedYes
StatusPublished
ID Code23048
Additional Information16th International School on Quantum Electronics: Laser Physics and Applications

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