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Simplified atom trap by using direct microwave modulation of a diode laser

Department of Physics, University of Colorado, USA

Joint Institute for Laboratory Astrophysics, University of Colorado and National Institute of Standards and Technology, Boulder, Colorado 80309-0440, USA

Department of Physics, University of Colorado, Boulder, Colorado 80309-0440, USA

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N. R. Newbury

Department of Physics, University of Colorado, USA

Joint Institute for Laboratory Astrophysics, University of Colorado and National Institute of Standards and Technology, Boulder, Colorado 80309-0440, USA

Department of Physics, University of Colorado, Boulder, Colorado 80309-0440, USA

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C. E. Wieman

Department of Physics, University of Colorado, USA

Joint Institute for Laboratory Astrophysics, University of Colorado and National Institute of Standards and Technology, Boulder, Colorado 80309-0440, USA

Department of Physics, University of Colorado, Boulder, Colorado 80309-0440, USA

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https://doi.org/10.1142/9789812813787_0045Cited by:0 (Source: Crossref)

Abstract:

We demonstrate direct microwave modulation of diode lasers operated with optical feedback from a diffraction grating. We obtain substantial fractions of the laser power (2–30%) in a single sideband at frequencies as high as 6.8 GHz with 20 mW of microwave power and simple inefficient microwave coupling. Using a single diode laser modulated at 6.6 GHz, we trapped ⁸⁷Rb atoms in a vapor cell. With only 10 mW of microwave power we trapped 85% as many atoms as were obtained by using two lasers in the conventional manner.

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Simplified atom trap by using direct microwave modulation of a diode laser

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