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Berlin 2014 – scientific programme

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A: Fachverband Atomphysik

A 14: Poster: Precision spectroscopy of atoms and ions (with Q)

A 14.21: Poster

Monday, March 17, 2014, 16:30–18:30, Spree-Palais

Ultrapure microwave generated from a comb stabilized to a robust reference — •Qunfeng Chen1, Alexander Nevsky1, Marco Cardace1, Uwe Sterr2, Stephan Schiller1, and Ingo Erensting11Institut für Experimentalphysik, Heinrich-Heine Universität Düsseldorf — 2Physikalisch-Technische Bundesanstalt (PTB), Braunschweig

Towards possible use in space for clocks on the ISS or custom satellites, we have developed a microwave-optical local oscillator. It is based on a reference resonator assembly for a Nd:YAG laser consisting of a 10 cm ULE cavity in a special holder allowing movement and tilt of the assembly. The laser instability is 3×10−15. Using a fiber frequency comb stabilized to the cavity-stablized laser, we have produced ultrapure microwaves. The characterization of the system will be presented.

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