Hannover 2020 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 39: Posters: Quantum Optics and Photonics III
Q 39.4: Poster
Wednesday, March 11, 2020, 16:30–18:30, Empore Lichthof
Highly stable, compact components for a transportable Al+/Ca+ quantum logic optical clock — •Benjamin Kraus1,4, Stephan Hannig1,4, Moritz Mihm2, Ortwin Hellmig3, Patrick Windpassinger2, and Piet O. Schmidt1,4 — 1Physikalisch-Technische Bundesanstalt, 38116 Braunschweig, Germany — 2Johannes Gutenberg-Universität Mainz, 55122 Mainz, Germany — 3Universität Hamburg, 20148 Hamburg, Germany — 4DLR-Institute for Satellite Geodesy and Inertial Sensing, c/o Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany
A transportable optical ion clock requires a compact and robust setup. These requirements are fulfilled by fiber-coupled components and rigid Zerodur®-based breadboards1. We present a distribution board, where light required for Ca+ ionization, cooling and repumping is coupled into an LMA fiber. Moreover, we present a fiber-coupled length-stabilized source for Al+ clock light of 267 nm, consisting of two subsequent single-pass SHG stages. Finally, we report on the development of fiber-coupled single and double-pass AOMs for that wavelength.
1. M. Mihm, "ZERODUR® based optical systems for quantum gas experiments in space," Acta Astronautica 159, 166*169 (2019).