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Q: Fachverband Quantenoptik und Photonik

Q 31: Poster: Quantum Optics and Photonics I

Q 31.78: Poster

Dienstag, 7. März 2017, 17:00–19:00, P OG1+2

Two-color spectroscopy for laser stabilization to the ytterbium 1S0-3P1 intercombination line — •Laura Sucke, Christian Halter, Tobias Franzen, Bastian Pollkesenser, Mustafa Jumaah, Cristian Bruni, and Axel Görlitz — Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Deutschland

We present a scheme for frequency stabilization of multiple lasers that are resonant with different transitions and originating from a common ground state. For the detection of weaker transitions we are harnessing the high signal to noise ratio provided by a strong transition. Doppler reduced spectroscopy is performed on an atomic beam by detecting the fluorescence of a strong dipole allowed transition. Individual error signals for this transition as well as additional weaker transitions are recovered from the strong fluorescence signal using lock-in techniques. We demonstrate the application to the strong 1S0-1P1 transition and the 1S0-3P1 intercombination line of ytterbium. We show data on the stability of this locking technique by comparing two identical spectroscopy setups