SAMOP 2021 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 3: Photonics and Laser Development

Q 3.8: Poster

Monday, September 20, 2021, 16:30–18:30, P

Lasersystem for Control of Magnsium Atoms — •Lennart Guth, Philip Kiefer, Deviprasath Palani, Florian Haße, Ulrich Warring, and Tobias Schätz — Physikalisches Institut, Albert-Ludwigs-Universität Freiburg

Trapped ions present a promising platform for quantum simulations and computations. High fidelity control of this platform requires versatile and robust laser systems with narrow bandwidth and a high level of power and intensity stability. The latest systems are based on vertical external-cavity surface-emitting lasers(VECSEL)[1] in the near-infrared. The light is sent into two modular-built frequency doubling stages: (i)a lithium triborate cavity and (ii)a beta barium borate cavity to generate the required ultra-violet light. Here, we present benchmark measurements and demonstrate the performance for photoionization(λ ≈ 1140nm, P=1.7W) and sideband cooling(λ≈ 1120nm, P>3W, linewidth on short time scales ν≃ 0.6MHz) of magnesium ions.

[1]Burd, S. et al.(2016), VECSEL systems for generation and manipulation of trapped magnesium ions, Optica Vol. 3, Issue 12, pp. 1294-1299 (2016)