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Q: Fachverband Quantenoptik und Photonik

Q 30: Laser Development: Solid State and Semiconductor Lasers

Q 30.8: Vortrag

Dienstag, 24. März 2015, 16:15–16:30, K/HS2

Micro-integrated diode laser modules for high precision quantum sensors in space — •Anja Kohfeldt¹, Christian Kürbis¹, Erdenetsetseg Luvsandamdin¹, Max Schiemangk^1,2, Andreas Wicht^1,2, Götz Erbert¹, Achim Peters^1,2, and Günther Tränkle¹ — ¹Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Str. 4, 12489 Berlin, Germany — ²Humboldt-Universität zu Berlin, Institut für Physik, Newtonstr. 15, 12489 Berlin, Germany

We report on the development of a very robust, energy-efficient, semiconductor based laser platform for the deployment of cold atom based quantum sensors in space. This platform is suitable for Master Oscillator Power Amplifier (MOPA) and Extended Cavity Diode Laser (ECDL) modules. The modules have a footprint not larger than 80 x 25 mm² and make use of either already space qualified or space qualifiable components and integration technologies. In addition an electrical interface for RF modulation of the injection currents is provided.

Designed for rubidium and potassium spectroscopy at 780 nm and 767 nm we present MOPA systems achieving an optical output power > 1 W and an intrinsic linewidth of < 50 kHz and ECDL systems with < 2 kHz at 30 mW.

This work is supported by the German Space Agency DLR with funds provided by the Federal Ministry for Economic Affairs and Energy (BMWi) under the grant numbers 50WM1134 and 50WM1240.