Dual-beam Cold-Atom Interfeometer for Inertial Sensing

We present new measurements of a continuous, dual-beam atom interferometer designed for inertial sensing. Each atom beam is derived from an atom source which emits a continuous beam of sub- Doppler cooled atoms while simultaneously mitigating near-resonant scattered light. We will describe the unique noise characteristics of this dual-beam interferometer as well as some simulations and experiments designed around mitigating time-varying noise in the system. We describe and characterize the dual beam design including scattering, temperature and flux measurements. Additionally we will detail the customdeveloped vacuum and optics design for the dual-beam platform. Our work here inspires future cold-beam architectures including a more compact and robust sensor for maritime use.