Efficient broadband frequency conversion via simultaneous adiabatic three wave mixing processes

Two frequency-cascaded and spatially simultaneous three-wave-mixing processes, each pumped by a different frequency, are studied in a quasi-phase-matching crystal with chirped poling. Theory, numerical simulation, and experiment all show that efficient two-process adiabatic frequency conversion take...

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Bibliographic Details
Published in:Applied physics letters 2013-04, Vol.102 (15)
Main Authors: Porat, Gil, Arie, Ady
Format: Article
Language:English
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Summary:Two frequency-cascaded and spatially simultaneous three-wave-mixing processes, each pumped by a different frequency, are studied in a quasi-phase-matching crystal with chirped poling. Theory, numerical simulation, and experiment all show that efficient two-process adiabatic frequency conversion takes place over a broad range of input wavelengths. Experimentally, up to five process cascades are obtained. Furthermore, it is demonstrated that reversing the chirp sign results in a different conversion for the same input wavelength. This method can be applied to generation of an all-optically tunable frequency comb.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4802597