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Stuttgart 2012 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 35: Poster 2

Q 35.83: Poster

Mittwoch, 14. März 2012, 16:30–19:00, Poster.I+II

Towards interconversion between UV- and telecom wavelengths — •Helge Rütz, Stephan Krapick, Raimund Ricken, Viktor Quiring, Hubertus Suche, and Christine Silberhorn — Universität Paderborn, Integrierte Quantenoptik, Warburger Str. 100, D-33098 Paderborn

While trapped ions and other promising candidates for stationary qubit systems in future quantum networks can only be addressed in the UV- and visible spectral region, efficient long distance photonic state transfer is only possible at telecommunication wavelengths. This spectral gap can however be bridged by Frequency Conversion.

Here, we present our conceptual work on a frequency conversion interface for quantum states of light between trapped ions at 369.5 nm and telecommunication wavelengths, based on second order nonlinear interactions (χ(2)) in tailored integrated optics.

Different material systems that are considered for this interface are Ti:PPLN, RPE:PPLN and Rb:PPKTP and we report on the respective challenges in waveguide fabrication and periodic poling techniques as well as current progress in our first frequency upconversion experiment.

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