Multi-channel coherent detection
US10921247B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2019 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Aug 20, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/4792
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical receiver is provided that includes an array of photoreceivers. Each photoreceiver may be configured to receive a respective portion of a speckle pattern generated by interaction between an object beam and a scattering medium and each photoreceiver may be configured to generate respective electrical detection signals for provision to processing circuitry for summing of the electrical detection signals. A photoreceiver may include a collector, first detector and second detectors, and first and second optical splitters. The photoreceiver may be configured to generate a first electrical detection signal and a second electrical detection signal based on a received portion of the speckle pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.