A novel single-crystal & single-pass source for polarisation- and colour-entangled photon pairs
arXiv:1612.06579 · doi:10.1038/s41598-017-07781-w
Abstract
We demonstrate a new generation mechanism for polarisation- and colour-entangled photon pairs. In our approach we tailor the phase-matching of a periodically poled KTP crystal such that two downconversion processes take place simultaneously. Relying on this effect, our source emits entangled bipartite photon states, emerging intrinsically from a single, unidirectionally pumped crystal with uniform poling period. Its property of being maximally compact and luminous at the same time makes our source unique compared to existing photon-entanglement sources and is therefore of high practical significance in quantum information experiments.
9 pages, 6 figures, 1 table
References in corpus (5)
- Experimental quantum teleportation
- A wavelength-tunable fiber-coupled source of narrowband entangled photons
- Hyperentanglement of two photons in three degrees of freedom
- A source of polarization-entangled photon pairs interfacing quantum memories with telecom photons
- Three-color Sagnac source of polarization-entangled photon pairs
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