Guided cold atom inertial sensors with membrane integrated photonics on atom trap integrated platforms
US11971256B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2022 |
| Grant date | Apr 30, 2024 |
| Priority date | — |
| Expiry date | Jan 8, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P15/093
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A guided cold-atom inertial sensor system comprises an atom trap integrated platform, a laser system, a magnetic field system, a control system, and a computing system. The laser system and magnetic field system are adapted to form a magneto-optical trap (MOT) about a suspended waveguide of the atom trap integrated platform made of membrane integrated photonics. After loading cold atoms from a MOT, the photonic atom trap integrated platform generates one-dimensional guided atoms with an evanescent field optical dipole trap (EF-ODT) along the optical waveguide to create guided atomic accelerometers/gyroscopes. Motion of atomic wavepackets in a superposition state is created along the guided atom geometry by way of state-dependent momentum kicks. The light-pulse sequence of guided atom interferometry splits, redirects, and recombines atomic wavepackets, which allows measurement of atom interference fringes sensitive to inertial forces via a probe laser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.