Abstract

We have designed and realized a compact portable laser system for high-sensitivity mobile cold atom interferometers. The laser system is mounted on a single module with dimensions of 45  cm×45  cm×16  cm and emits lights directly on up to 13 fiber ports for a two-dimensional magneto-optical trap, atom fountain, Raman transition, and normalized detection. A double-sided optical structure and mounts without kinematic adjustment are designed to achieve high-level integration and stability. The laser system is applied to a mobile atom gravimeter and achieves a sensitivity of 28  μGal/Hz1/2. Experiencing 1200-km-long truck transportation, the laser system could be restored to good operating status without internal realignment.

© 2018 Optical Society of America

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