Narrow linewidth diode laser modules for quantum optical sensor applications in the field and in space

A. Wichta,b, A. Bawamiaa, M. Krügera, Ch. Kürbisa, M. Schiemangka, R. Smola, A. Petersa,b, G. Tränklea

Published in:

Proc. SPIE 10085, Photonics West, San Francisco, USA, Jan 28 - Feb 02, 100850F (2017).

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Abstract:

We present the status of our efforts to develop very compact and robust diode laser modules specifically suited for quantum optics experiments in the field and in space. The paper describes why hybrid micro-integration and GaAs-diode laser technology is best suited to meet the needs of such applications. The electro-optical performance achieved with hybrid micro-integrated, medium linewidth, high power distributed-feedback master-oscillator-power-amplifier modules and with medium power, narrow linewidth extended cavity diode lasers emitting at 767 nm and 780 nm are briefly described and the status of space relevant stress tests and space heritage is summarized. We also describe the performance of an ECDL operating at 1070 nm. Further, a novel and versatile technology platform is introduced that allows for integration of any type of laser system or electro-optical module that can be constructed from two GaAs chips. This facilitates, for the first time, hybrid micro-integration, e.g. of extended cavity diode laser master-oscillator-poweramplifier modules, of dual-stage optical amplifiers, or of lasers with integrated, chip-based phase modulator. As an example we describe the implementation of an ECDL-MOPA designed for experiments on ultra-cold rubidium and potassium atoms on board a sounding rocket and give basic performance parameters.

a Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik, 12489 Berlin, Gustav-Kirchhoff-Str. 4, Germany
b Humboldt-Universität zu Berlin, Institut für Physik, Newtonstr. 15, 12489 Berlin, Germany

Keywords:

diode lasers, cold atoms, atom interferometry, quantum sensors, precision spectroscopy, space operation.