Optical data transfer
US12300290B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2024 |
| Grant date | May 13, 2025 |
| Priority date | — |
| Expiry date | Apr 15, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/135
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In an optical data transfer system, a beam modulator is configured to embed a set of data in an input beam. A multimode optical waveguide network has an in-coupling region for receiving the input beam. The multimode optical waveguide network is configured to guide the input beam to an out-coupling region of the multimode optical waveguide network. A spatial coherent detector is configured to measure a phase and an amplitude of an output optical field at multiple locations. The output optical field is at least partially defined by the input beam and thus exhibiting distortion effects caused by the passage of the beam through the multimode waveguide network. Signal processing is applied to an output of the spatial coherent detector, in order to compensate for the distortion effects, and thereby recover, from the output of the spatial coherent detector, the set of data embedded in the input beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.