Effective fiber-coupling of entangled photons for quantum communication
classification
🪐 quant-ph
keywords
entangledcouplingquantumstatescommunicationconstraintsconversioncrucial
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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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