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arXiv · 1403.7095

Space-time coupling in the up-conversion of broadband down-converted light

Enrico Brambilla·Ottavia Jedrkiewicz·Paolo di Trapani·Alessandra Gatti
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Abstract

We investigate the up-conversion process of broadband light from parametric down-conversion (PDC), focusing on the spatio-temporal spectral properties of the sum-frequency generated (SFG) radiation. We demonstrate that the incoherent component of the SFG spectrum is characterized by a skewed geometry in space-time, which originates from a compensation between the group-velocity mismatch and the spatial walk-off of the fundamental and the SFG fields. The results are illustrated both by a theoretical modeling of the optical system and by experimental measurements.

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Enrico Brambilla, Ottavia Jedrkiewicz, Paolo di Trapani, Alessandra Gatti. 2014-03-22. Space-time coupling in the up-conversion of broadband down-converted light. https://doi.org/10.1364/josab.31.001383

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