Quantum frequency conversion of single photons from 606 NM to telecom wavelengths for heterogeneous quantum networks

In this work we experimentally and theoretically characterize the converted signal and the noise level of a quantum frequency conversion (QFC) device implemented for frequency down conversion from the visible to telecommunication wavelengths. This frequency converter is a useful device able to inter...

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Detalles Bibliográficos
Autor: Batllori Berenguer, Josep Maria
Tipo de recurso: tesis de maestría
Fecha de publicación:2020
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/343453
Acceso en línea:https://hdl.handle.net/2117/343453
Access Level:acceso abierto
Palabra clave:Quantum theory
Photonics
quantum frequency conversion
quantum memories
single photons
Quàntums, Teoria dels
Fotònica
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spelling Quantum frequency conversion of single photons from 606 NM to telecom wavelengths for heterogeneous quantum networksBatllori Berenguer, Josep MariaQuantum theoryPhotonicsquantum frequency conversionquantum memoriessingle photonsQuàntums, Teoria delsFotònicaIn this work we experimentally and theoretically characterize the converted signal and the noise level of a quantum frequency conversion (QFC) device implemented for frequency down conversion from the visible to telecommunication wavelengths. This frequency converter is a useful device able to interface quantum memories operating at different wavelengths. We observe that the main noise source is directly induced by the pump via spontaneous parametric down-conversion (SPDC), enhanced by imperfections in the periodic poling structure of the waveguide. We also measure conversion with high signal to noise ratio for microsecond long weak coherent states at the single photon level. Finally, we show theoretically that the converted Stokes/Anti-Stokes non-classical correlations of photon pairs emitted by quantum memories could be largely preserved for pulse durations lower than 4µs.Universitat Politècnica de CatalunyaDe Riedmatten, Hugues20202020-11-1920212021-04-09master thesishttp://purl.org/coar/resource_type/c_bdccNAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/masterThesisapplication/pdfhttps://hdl.handle.net/2117/343453reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3434532026-05-27T15:37:01Z
dc.title.none.fl_str_mv Quantum frequency conversion of single photons from 606 NM to telecom wavelengths for heterogeneous quantum networks
title Quantum frequency conversion of single photons from 606 NM to telecom wavelengths for heterogeneous quantum networks
spellingShingle Quantum frequency conversion of single photons from 606 NM to telecom wavelengths for heterogeneous quantum networks
Batllori Berenguer, Josep Maria
Quantum theory
Photonics
quantum frequency conversion
quantum memories
single photons
Quàntums, Teoria dels
Fotònica
title_short Quantum frequency conversion of single photons from 606 NM to telecom wavelengths for heterogeneous quantum networks
title_full Quantum frequency conversion of single photons from 606 NM to telecom wavelengths for heterogeneous quantum networks
title_fullStr Quantum frequency conversion of single photons from 606 NM to telecom wavelengths for heterogeneous quantum networks
title_full_unstemmed Quantum frequency conversion of single photons from 606 NM to telecom wavelengths for heterogeneous quantum networks
title_sort Quantum frequency conversion of single photons from 606 NM to telecom wavelengths for heterogeneous quantum networks
dc.creator.none.fl_str_mv Batllori Berenguer, Josep Maria
author Batllori Berenguer, Josep Maria
author_facet Batllori Berenguer, Josep Maria
author_role author
dc.contributor.none.fl_str_mv De Riedmatten, Hugues
dc.subject.none.fl_str_mv Quantum theory
Photonics
quantum frequency conversion
quantum memories
single photons
Quàntums, Teoria dels
Fotònica
topic Quantum theory
Photonics
quantum frequency conversion
quantum memories
single photons
Quàntums, Teoria dels
Fotònica
description In this work we experimentally and theoretically characterize the converted signal and the noise level of a quantum frequency conversion (QFC) device implemented for frequency down conversion from the visible to telecommunication wavelengths. This frequency converter is a useful device able to interface quantum memories operating at different wavelengths. We observe that the main noise source is directly induced by the pump via spontaneous parametric down-conversion (SPDC), enhanced by imperfections in the periodic poling structure of the waveguide. We also measure conversion with high signal to noise ratio for microsecond long weak coherent states at the single photon level. Finally, we show theoretically that the converted Stokes/Anti-Stokes non-classical correlations of photon pairs emitted by quantum memories could be largely preserved for pulse durations lower than 4µs.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-11-19
2021
2021-04-09
dc.type.none.fl_str_mv master thesis
http://purl.org/coar/resource_type/c_bdcc
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/343453
url https://hdl.handle.net/2117/343453
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universitat Politècnica de Catalunya
publisher.none.fl_str_mv Universitat Politècnica de Catalunya
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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