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Efficient heralding of polarization-entangled photons from type-0 and type-II spontaneous parametric downconversion in periodically poled KTiOPO 4
dc.contributor.author | Steinlechner, Fabian |
dc.contributor.author | Gilaberte, Marta |
dc.contributor.author | Jofre Cruanyes, Marc |
dc.contributor.author | Scheidl, Thomas |
dc.contributor.author | Pérez Torres, Juan |
dc.contributor.author | Pruneri, Valerio |
dc.contributor.author | Ursin, Rupert |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions |
dc.date.accessioned | 2014-11-04T17:47:09Z |
dc.date.created | 2014-09-01 |
dc.date.issued | 2014-09-01 |
dc.identifier.citation | Steinlechner, F. [et al.]. Efficient heralding of polarization-entangled photons from type-0 and type-II spontaneous parametric downconversion in periodically poled KTiOPO 4. "Journal of the Optical Society of America B. Optical physics", 01 Setembre 2014, vol. 31, núm. 9, p. 2068-2076. |
dc.identifier.issn | 0740-3224 |
dc.identifier.uri | http://hdl.handle.net/2117/24554 |
dc.description.abstract | Ultrabright sources of entangled photon pairs with high heralding efficiency are an important step in the pursuit of high-bit-rate entanglement-base quantum key distribution, as well as an enabling tool for loss-sensitive quantum optics experiments. Here, we present a robust single-mode fiber-coupled source of polarization-entangled photons around 810 nm with both high brightness and heralding efficiency. Our approach is based on quasi-phase-matched spontaneous parametric downconversion (SPDC) from periodically poled KTiOPO4 in a Sagnac loop configuration. We demonstrate a high degree of two-photon polarization entanglement for single-frequency-pumped type-0 and type-II SPDC, and conduct a conclusive comparison in terms of efficiency and spectral characteristics. In light of applications outside a laboratory environment, we evaluate the feasibility of pumping nonlinear crystals with free-running laser diodes. © 2014 Optical Society of America. |
dc.format.extent | 9 p. |
dc.language.iso | eng |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica |
dc.subject.lcsh | Quantum optics |
dc.subject.other | Efficiency |
dc.subject.other | Polarization |
dc.subject.other | Quantum cryptography |
dc.subject.other | Quantum optics |
dc.subject.other | Single mode fibers |
dc.subject.other | Entangled photon pairs |
dc.subject.other | Free-running lasers |
dc.subject.other | Laboratory environment |
dc.subject.other | Polarization-entangled photons |
dc.subject.other | Quasi-phase-matched |
dc.subject.other | Spectral characteristics |
dc.subject.other | Spontaneous parametric down-conversion |
dc.subject.other | Two-photon polarization |
dc.subject.other | Photons |
dc.title | Efficient heralding of polarization-entangled photons from type-0 and type-II spontaneous parametric downconversion in periodically poled KTiOPO 4 |
dc.type | Article |
dc.subject.lemac | Òptica quàntica |
dc.contributor.group | Universitat Politècnica de Catalunya. FOTONICA - Grup de Recerca de Fotònica |
dc.identifier.doi | 10.1364/JOSAB.31.002068 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://www.opticsinfobase.org/josab/abstract.cfm?uri=josab-31-9-2068 |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 15264183 |
dc.description.version | Postprint (published version) |
dc.date.lift | 10000-01-01 |
local.citation.author | Steinlechner, F.; Gilaberte, M.; Jofre, M.; Scheidl, T.; Juan P. Torres; Pruneri, V.; Ursin, R. |
local.citation.publicationName | Journal of the Optical Society of America B. Optical physics |
local.citation.volume | 31 |
local.citation.number | 9 |
local.citation.startingPage | 2068 |
local.citation.endingPage | 2076 |
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