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arXiv · quant-ph/0303126

Effective fiber-coupling of entangled photons for quantum communication

F. A. Bovino·P. Varisco·A. M. Colla·G. Castagnoli·G. Di Giuseppe·A. V. Sergienko
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Abstract

We report on theoretical and experimental demonstration of high-efficiency coupling of two-photon entangled states produced in the nonlinear process of spontaneous parametric down conversion into a single-mode fiber. We determine constraints for the optimal coupling parameters. This result is crucial for practical implementation of quantum key distribution protocols with entangled states.

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F. A. Bovino, P. Varisco, A. M. Colla, G. Castagnoli, G. Di Giuseppe, A. V. Sergienko. 2003-03-20. Effective fiber-coupling of entangled photons for quantum communication. https://doi.org/10.1016/j.optcom.2003.09.064

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