Storage and Reemission of Heralded Telecommunication-Wavelength Photons Using a Crystal Waveguide
Abstract
Large-scale fiber-based quantum networks will likely employ telecommunication-wavelength photons of around 1550 nm wavelength to exchange quantum information between remote nodes, and quantum memories, ideally operating at the same wavelength, that allow the transmission distances to be increased, as key elements of a quantum repeater. However, the development of a suitable memory remains an ongoing challenge. Here, we demonstrate the storage and reemission of single heralded 1532-nm-wavelength photons using a crystal waveguide. The photons are emitted from a photon-pair source based on spontaneous parametric down-conversion and the memory is based on an atomic frequency comb of 6 GHz bandwidth, prepared through persistent spectral-hole burning of the inhomogeneously broadened absorption line of a cryogenically cooled erbium-doped lithium niobate waveguide. Despite currently limited storage time and efficiency, this demonstration represents an important step toward quantum networks that operate in the telecommunication band and the development of integrated (on-chip) quantum technology using industry-standard crystals.
Additional Information
© 2019 American Physical Society. Received 8 May 2018; revised manuscript received 15 April 2019; published 21 May 2019. We thank Wolfgang Sohler, Mathew George, and Raimund Ricken for providing the Er^(3+):Ti^(4+):LiNbO_3 waveguide, Francesco Marsili for assistance with development of the SNSPDs, Jakob H. Davidson for help with aligning the waveguide, and Gustavo Amaral and Erhan Saglamyurek for useful discussions. This work is funded through Alberta Innovates Technology Futures (AITF), the National Science and Engineering Research Council of Canada (NSERC), and the Defense Advanced Research Projects Agency (DARPA) Quiness program.W.T. furthermore acknowledges funding by the Netherlands Organization for Scientific Research (NWO) and as a Senior Fellow of the Canadian Institute for Advanced Research (CIFAR), and V.B.V. and S.W.N. partial funding for detector development from the Defense Advanced Research Projects Agency (DARPA) Information in a Photon (InPho) program. Part of the detector research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration (NASA).Attached Files
Published - PhysRevApplied.11.054056.pdf
Submitted - 1804.05699.pdf
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Additional details
- Alternative title
- Storage and retrieval of heralded telecommunication-wavelength photons using a solid-state waveguide quantum memory
- Eprint ID
- 95637
- Resolver ID
- CaltechAUTHORS:20190521-101720135
- Alberta Innovates Technology Futures
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Defense Advanced Research Projects Agency (DARPA)
- Netherlands Organization for Scientific Research (NWO)
- Canadian Institute for Advanced Research (CIFAR)
- NASA/JPL/Caltech
- Created
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2019-05-21Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field