Scanning the tilt of the Raman lasers instead of their phase produces an aperiodic fringe whose asymmetry determines the laser tilt to about 30 μrad in 13 s, an order-of-magnitude faster than conventional calibration.
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Fast determination of the tilt of Raman lasers using the tilt-scanned fringe for atom gravimeters
Scanning the tilt of the Raman lasers instead of their phase produces an aperiodic fringe whose asymmetry determines the laser tilt to about 30 μrad in 13 s, an order-of-magnitude faster than conventional calibration.