Apparatus and methods for quantum beam tracking
US11125773B2 · kind B2 · utility
2Cited by
1References
22Claims
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Key dates
| Filing date | Jul 7, 2020 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Jul 7, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/392
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method includes sending a probe beam into a beam path that induces a lateral displacement to the probe beam. The probe beam includes a plurality of orthogonal spatial modes that are entangled with each other. The method also includes measuring a phase of each spatial mode from the plurality of orthogonal spatial modes in the probe beam at a detector disposed within a near field propagation regime of the probe beam. The method also includes estimating the lateral displacement of the probe beam based on a phase of each spatial mode from the plurality of spatial modes in the probe beam after the beam path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.