Dual-wavelength laser source for onboard atom interferometry

Abstract

We present a compact and stable dual-wavelength laser source for onboard atom interferometry with two different atomic species. It is based on frequency-doubled telecom lasers locked on a femtosecond optical frequency comb. We take advantage of the maturity of fiber telecom technology to reduce the number of free-space optical components which are intrinsically less stable, and to make the setup immune to vibrations and thermal fluctuations. The source provides the frequency agility and phase stability required for atom interferometry and can easily be adapted to other cold atom experiments. We have shown its robustness by achieving the first dual-species K-Rb magneto optical trap in microgravity during parabolic flights.

References in corpus (5)

• Detecting inertial effects with airborne matter-wave interferometry
• 6-axis inertial sensor using cold-atom interferometry
• Testing General Relativity with Atom Interferometry
• Sub-Doppler laser cooling of potassium atoms
• Wide bandwidth phase-locked diode laser with an intra-cavity electro-optic modulator

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