Constant-frequency acousto-optic beam steering
US11531249B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 24, 2022 |
| Grant date | Dec 20, 2022 |
| Priority date | — |
| Expiry date | Apr 24, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/24
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A pair of acousto-optic deflectors (AODs) is used to steer a pair of laser beams to address individual atoms of an array of atoms so that the beams can conditionally induce a 2-photon transition between the atom's quantum energy levels. The first beam is deflected into a +1 diffraction order, resulting in an AOD output beam with a frequency greater than that of the respective AOD input beam. The second beam is deflected into a −1 diffraction order so that the AOD output beam has a frequency less than that of the respective AOD input beam. The equal and opposite frequency changes compensate it other so that the sum of the output frequencies remains constant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.