Mainz 2017 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 53: Poster: Quantum Optics and Photonics III
Q 53.85: Poster
Donnerstag, 9. März 2017, 17:00–19:00, P OG2
Pulse-to-pulse measurements on a broadband PDC source — •Thomas Dirmeier1,2, Imran Khan1,2, Georg Harder3, Vahid Ansari3, Johannes Tiedau3, Ulrich Vogl1,2, Gerd Leuchs1,2,4, Christoph Marquardt1,2, and Christine Silberhorn3 — 1Max Planck Institut für die Physik des Lichts, Staudtstr. 2, 91058 Erlangen — 2Institut für Optik, Information und Photonik, FAU Erlangen-Nürnberg, Staudtstr. 7, 91058 Erlangen — 3Lehrstuhl für Angewandte Physik, Universität Paderborn, Warburgerstr. 100, 33098 Paderborn — 4Department of Physics and Max Planck - University of Ottawa Centre for Extreme and Quantum Photonics, University of Ottawa, Canada
PDC sources embedded in ppKTP waveguides have been shown to be stable sources of squeezed vacuum states with a broad versatility in the spectral mode structure. Recently, it has been demonstrated that by applying high pump powers, states with high mean photon numbers can be generated and measured [1], translating into high squeezing values.
In our work, we focus on the application of this type of source in the continuous-variable context, mainly focusing on the measurement of squeezed vacuum states in both, the spectral single and multimode case. We show the progress on the pulse-resolved homodyne detection in this system and its combination with photon counting measurements in quantum information protocols.
[1] G.Harder et.al.,Phys. Rev. Lett. 116, 143601 (2016)