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Q: Fachverband Quantenoptik und Photonik
Q 5: Quantum Optics I
Q 5.4: Talk
Monday, February 29, 2016, 11:45–12:00, f442
The Quantum Pulse Gate - A versatile non-linear platform for quantum optics — Markus Allgaier1, •Vahid Ansari1, Viktor Quiring1, Raimund Ricken1, Linda Sansoni1, Benjamin Brecht2,1, and Christine Silberhorn1 — 1Universität Paderborn, Integrierte Quantenoptik, Warburger Str. 100, D-33098 Paderborn — 2Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, UK
We present experimental results and methods on the Quantum Pulse Gate (QPG) recently introduced [1]. The QPG relies on group-velocity matched, dispersion-engineered sum-frequency generation in Lithium-Niobate waveguides. By being able to select a single Schmidt mode from a multimode quantum state in the telecom regime and convert it into the visible range it offers operation on time-frequency modes recently established as a framework for Quantum Information Processing [2]. Moreover, the QPG allows efficient real-time temporal characterization of single photons with a resolution as short as 150 femtoseconds.
[1] B. Brecht, et al., Phys. Rev. A 90, 030302(R) (2014)
[2] B. Brecht, et al., Phys. Rev. X 5, 041017 (2015)