Efficient and spectrally bright source of polarization-entangled photons

Abstract

We demonstrate an efficient fiber-coupled source of nondegenerate polarization entangled photons at 795 and 1609 nm using bidirectionally pumped parametric down-conversion in bulk periodically poled lithium niobate. The single-mode source has an inferred bandwidth of 50 GHz and a spectral brightness of 300 pairs/s/GHz/mW of pump power that is suitable for narrowband applications such as entanglement transfer from photonic to atomic qubits.

8 pages, 7 figures, submitted to Phys. Rev. A

References in corpus (1)

• Generation of ultrabright tunable polarization entanglement without spatial, spectral, or temporal constraints

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