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arXiv:2201.02731 · Physical Review Letters

Efficient Source of Shaped Single Photons Based on an Integrated Diamond Nanophotonic System

Erik Knall, Can M. Knaut, Rivka Bekenstein, Daniel Assumpção, P. L. Stroganov, W. Gong, Yan Qi Huan, Pieter-Jan Stas, Bartholomeus Machielse, Michelle Chalupnik, David Levonian, Aziza Suleymanzade, Ralf Riedinger, Hongkun Park, Marko Lončar, Mihir K. Bhaskar, Mikhail D. Lukin

Published Jul 26, 2022• 74 citations

Abstract

An efficient, scalable source of shaped single photons that can be directly integrated with optical fiber networks and quantum memories is at the heart of many protocols in quantum information science. We demonstrate a deterministic source of arbitrarily temporally shaped single-photon pulses with high efficiency [detection efficiency=14.9%] and purity [g^{(2)}(0)=0.0168] and streams of up to 11 consecutively detected single photons using a silicon-vacancy center in a highly directional fiber-integrated diamond nanophotonic cavity. Combined with previously demonstrated spin-photon entangling gates, this system enables on-demand generation of streams of correlated photons such as cluster states and could be used as a resource for robust transmission and processing of quantum information.

DOI: 10.1103/physrevlett.129.053603

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