PPLN-based photon-pair source compatible with solid state quantum memories and telecom optical fibers

20th International Youth Scientific School "Coherent Optics and Optical Spectroscopy"

Latypov, I.Z.^1 ; Shkalikov, A.V.^1 ; Akat'Ev, D.O.^1 ; Kalachev, A.A.^1

E. K. Zavoisky Physical-Technical Institute, Russian Academy of Sciences, Sibirsky tract, 10/7, Kazan

420029, Russia^1

关键词: Correlated photon pairs;    Correlation characteristics;    Heralded single photon sources;    Periodically poled lithium niobate crystals;    Quantum memory;    Spontaneous parametric down conversion;    Telecom optical fibers;    Tunable source;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/859/1/012011/pdf
DOI  :  10.1088/1742-6596/859/1/012011

来源: IOP

【 摘 要 】

We report on the realization of a tunable source of correlated photon pairs compatible with telecommunication networks and quantum memories involving dielectric crystals doped by Nd3+ions. The source is based on spontaneous parametric down-conversion in a 25 mm periodically poled lithium niobate crystal pumped by 532 nm cw laser. Spectral and correlation characteristics of the corresponding heralded single-photon source compatible with quantum memories are presented.