2016/02/03 by Stephan Krapick, Benjamin Brecht, Harald Herrmann +2 · 35 citations
Computer Science · Physics and Astronomy · #Benchmark (surveying) #Mechanical and Optical Resonators #Noise (video) #Parametric statistics #Photon #Pulse (music) #Quantum #Quantum Information and Cryptography #Quantum key distribution #Quantum optics #Quantum optics and atomic interactions #Quantum technology #Spontaneous parametric down-conversion #quant-ph
paper · pdf · open access · doi:10.1364/oe.24.002836
published in Optics Express 24(3), 2836 (Optica Publishing Group) · 14 pages (7 figures)
openalex publication_date 2016/02/03 · openalex created_date 2016/06/24 · arxiv created 2017/05/26 · arxiv updated 2017/05/30 · openalex updated_date 2026/08/05
Efficient sources of many-partite non-classical states are key for the advancement of quantum technologies and for the fundamental testing of quantum mechanics. We demonstrate the generation of time-correlated photon triplets at telecom wavelengths via pulsed cascaded parametric down-conversion in a monolithically integrated source. By detecting the generated states with success probabilities of (6.25 ± 1.09) × 10(-11) per pump pulse at injected powers as low as 10 μW, we benchmark the efficiency of the complete system and deduce its high potential for scalability. Our source is unprecedentedly long-term stable, it overcomes interface losses intrinsically due to its monolithic architecture, and the photon-triplet states dominate uncorrelated noise significantly. These results mark crucial progress towards the proliferation of robust, scalable, synchronized and miniaturized quantum technology.