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arXiv · 1611.02294

Active demultiplexing of single-photons from a solid-state source

F. Lenzini·B. Haylock·J. C. Loredo·R. A. Abrahao·N. A. Zakaria·S. Kasture·I. Sagnes·A. Lemaitre·H. -P. Phan·D. V. Dao·P. Senellart·M. P. Almeida·A. G. White·M. Lobino
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Abstract

A scheme for active temporal-to-spatial demultiplexing of single-photons generated by a solid-state source is introduced. The scheme scales quasi-polynomially with photon number, providing a viable technological path for routing n photons in the one temporal stream from a single emitter to n different spatial modes. The active demultiplexing is demonstrated using a state-of-the-art photon source---a quantum-dot deterministically coupled to a micropillar cavity---and a custom-built demultiplexer---a network of electro-optically reconfigurable waveguides monolithically integrated in a lithium niobate chip. The measured demultiplexer performance can enable a six-photon rate three orders of magnitude higher than the equivalent heralded SPDC source, providing a platform for intermediate quantum computation protocols.

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F. Lenzini, B. Haylock, J. C. Loredo, R. A. Abrahao, N. A. Zakaria, S. Kasture, I. Sagnes, A. Lemaitre, H. -P. Phan, D. V. Dao, P. Senellart, M. P. Almeida, A. G. White, M. Lobino. 2016-11-07. Active demultiplexing of single-photons from a solid-state source. https://doi.org/10.1002/lpor.201600297

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