Journal article
Quantum frequency translation by four-wave mixing in a fiber: low-conversion regime
In this paper we consider frequency translation enabled by Bragg scattering, a four-wave mixing process. First we introduce the theoretical background of the Green function formalism and the Schmidt decomposition. Next the Green functions for the low-conversion regime are derived perturbatively in the frequency domain, using the methods developed for three-wave mixing, then transformed to the time domain.
These results are also derived and verified using an alternative time-domain method, the results of which are more general. For the first time we include the effects of convecting pumps, a more realistic assumption, and show that separability and arbitrary reshaping is possible. This is confirmed numerically for Gaussian pumps as well as higher-order Hermite-Gaussian pumps.
Language: | English |
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Year: | 2012 |
Pages: | 8367-8396 |
ISSN: | 10944087 |
Types: | Journal article |
DOI: | 10.1364/OE.20.008367 |
ORCIDs: | Rottwitt, K |