Narrowband photon pairs with independent frequency tuning for quantum light-matter interactions

Year: 2019

Authors: Prakash V., Bianchet L.C., Cuairan M.T., Gomez P., Bruno N., Mitchell M.W.

Autors Affiliation: Barcelona Inst Sci & Technol, ICFO Inst Ciencies Foton, Barcelona 08860, Spain; ICREA, Barcelona 08010, Spain.

Abstract: We describe a cavity-enhanced spontaneous parametric down-conversion (CE-SPDC) source for narrowband photon pairs with filters designed such that 97.7% of the correlated photons are in a single mode of 4.3(4) MHz bandwidth. Type-II phase matching, a tuneable-birefringence resonator, MHz-resolution pump tuning, and tuneable Fabry-Perot filters are used to achieve independent signal and idler tuning. We map the CE-SPDC spectrum using difference frequency generation to precisely locate the emission clusters, demonstrate CE-SPDC driven atomic spectroscopy, and measure a contribution from unwanted modes of 7.7%. The generated photon pairs efficiently interact with neutral rubidium, a well-developed system for quantum networking and quantum simulation. The techniques are readily extensible to other material systems. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

Journal/Review: OPTICS EXPRESS

Volume: 27 (26)      Pages from: 38463  to: 38478

More Information: European Research Council (280169, 713682, AQUMET, ERIDIAN); European Commission (641122, 800901, FET Innovation Launchpad UVALITH, QUIC); Ministerio de Economia y Competitividad ((PCI2018-092973), MAQRO, OCARINA, PGC2018-097056-B-I00, QCLOCKS, Ref. FIS2015-68039-P); Fundacion Cellex (CERCA); QUANTUM TECHNOLOGY FLAGSHIP PROJECT (17FUN03, 766402, 820393, EMPIR PROJECT USOQS, MAQSIMAL, Marie Sklodowska-Curie ITN ZULF-NMR); SEVERO OCHOA (SEV-2015-0522); Agencia de Gestio d’Ajuts Universitaris i de Recerca (2017-SGR-1354, AGAUR); H2020 Marie SklodowskaCurie Actions (665884).
KeyWords: Down-conversion; Nonlinear Optics; Single-molecule; Atoms
DOI: 10.1364/OE.382474

Citations: 3
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