Freiburg 2024 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 37: Poster III
Q 37.59: Poster
Wednesday, March 13, 2024, 17:00–19:00, Tent B
A compact WGMR-based source optimized for coupling to an ion in a deep parabolic mirror — Sheng-Hsuan Huang1,2, •Thomas Dirmeier1,2, Martin Fischer1,2, Markus Sondermann1,2, Gerd Leuchs1,2, and Christoph Marquardt2,1 — 1Max-Planck-Institute for the Science of Light, Erlangen, Germany — 2Department of Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
As part of the BMBF QuNET initiative, it is planned to demonstrate the coupling of a mobile node containing a SPDC source to a stationary ion trap.
Cavity-assisted SPDC sources have been known to allow for the efficient coupling to atomic transitions. They often require additional spectral filtering cavities, thus leading to a higher experimental complexity. However, optical whispering gallery mode resonators (WGMR) have been proven to be compact, efficient and single mode sources of e.g. squeezed states or heralded single photons which can be coupled well to alkali metal vapours [1-3].
In our presentation, we discuss the concept and progress on the realization of a compact WGMR source that is specifically tailored to the D3/2 ⇔ D[3/2]1/2 transition at 935 nm of 174Yb+. We also highlight the challenges faced while developing a photon-ion-coupling experiment for a mobile platform, in this case an airplane.
[1]A.Otterpohl, et.al., Optica 6, 1375-1380 (2019)
[2]G.Schunk, et.al., Journal of Modern Optics 63 (2016)
[3]M.Förtsch, et.al., Physical Review A 91(2) 023812 (2015)
Keywords: SPDC