Real-time phase control methods for cold-atom interferometry

TL;DR

This paper introduces two real-time phase control methods for cold-atom interferometers, using mirror position jumps or Raman laser frequency adjustments, achieving performance comparable to existing optical phase jump techniques, and expanding application possibilities.

Contribution

It presents novel real-time phase compensation techniques for atom interferometers that are suitable for space applications, broadening the scope of inertial measurement methods.

Findings

Achieved state-of-the-art performance with new methods

Demonstrated comparable results to optical phase jumps

Expanded potential applications in space-based interferometry

Abstract

We present two methods to achieve real-time inertial phase compensation in atom interferometers. Both methods, based on jumps of the position of the retroreflection mirror or frequencies of Raman lasers, demonstrate similar state-of-the-art performance on our cold atom gyroscope, comparable to that of the reference method based on optical phase jumps. These alternative approaches broaden the scope of applications for real-time inertial phase compensation methods in atomic interferometers, particularly for space applications.