Mainz 2017 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 31: Poster: Quantum Optics and Photonics I

Q 31.87: Poster

Dienstag, 7. März 2017, 17:00–19:00, P OG1+2

Performance improvement of an SPDC source using timemultiplexing — •Marcello Massaro, Harald Herrmann, and Christine Silberhorn — Universität Paderborn, Integrierte Quantenoptik, Warburger Str. 100, D-33098 Paderborn

Spontaneous Parametric Down-Conversion (SPDC) sources are widely used in quantum optics to produce single photon states used in various experiments and quantum information protocols. One major limitation of such sources is the noise due to multi-photons contributions when one tries to pump them in order to increase the generation rate. These sources are also limited intrinsically due to the physical process that governs them.

We show here that is possible to improve the performance of such sources by using a time-multiplexing scheme or a feed-forward protocol, in order to push the production rate towards the physical limit or even overcome it completely.