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Q: Fachverband Quantenoptik und Photonik
Q 44: Laser Development and Applications
Q 44.1: Vortrag
Donnerstag, 12. März 2020, 11:00–11:15, f435
VECSEL system for quantum manipulation of trapped magnesium ions — •Till Rehmert1,2, Maximilian J. Zawierucha2, Jan Christoph Heip2, Fabian Wolf2, and Piet O. Schmidt1,2 — 1Leibniz Universität Hannover, Germany — 2Physikalisch-Technische Bundesanstalt, Braunschweig, Germany
Optical pumped vertical-external-cavity surface-emitting lasers (VECSEL) have been demonstrated to be a promising technology for applications ranging from spectroscopy to quantum computing and quantum simulation [1]. VECSELs combine compact size and high optical power and the advantage of a wide wavelength coverage.
We present the steps towards a high power VECSEL system with an optical-to-optical effciency of approximately 30% and up to 6 watts of optical output power at 1121 nm. Furthermore, an overview of the spectral properties and the noise levels of frequency and intensity will be given.
A VECSEL system at this wavelength is a suitable light source for quantum logic spectroscopy with trapped magnesium ions, since it offers frequency quadrupled in the UV enough output power and a laser linewidth of tens of MHz for Doppler cooling, repumping and Raman transition.
[1] Burd et al, Optica Vol.3, No. 12 (2016)