A compact dual atom interferometer gyroscope based on laser-cooled rubidium

TL;DR

This paper introduces a compact, transportable dual atom interferometer gyroscope using laser-cooled rubidium atoms, aiming to significantly improve rotation sensitivity for inertial sensing.

Contribution

It presents a novel compact design and a method to extend the interferometer geometry, enhancing sensitivity by over two orders of magnitude.

Findings

Characterized a compact dual Mach-Zehnder atom interferometer

Proposed an extended geometry with three interaction zones

Predicted sensitivity better than 10^{-8} rad/s/√Hz

Abstract

We present a compact and transportable inertial sensor for precision sensing of rotations and accelerations. The sensor consists of a dual Mach-Zehnder-type atom interferometer operated with laser-cooled $^{87}$Rb. Raman processes are employed to coherently manipulate the matter waves. We describe and characterize the experimental apparatus. A method for passing from a compact geometry to an extended interferometer with three independent atom-light interaction zones is proposed and investigated. The extended geometry will enhance the sensitivity by more than two orders of magnitude which is necessary to achieve sensitivities better than $10^{-8} $rad/s/$\sqrt{\rm Hz}$.