Optical laser communication apparatus with etalon-based optical phase demodulation and associated methods
US10862586B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2020 |
| Grant date | Dec 8, 2020 |
| Priority date | — |
| Expiry date | Apr 28, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/21
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical receiver for use in free space communication from a transmitter to the optical receiver is configured for receiving optical signals from the transmitter. The optical receiver includes optics for collecting the optical signals, a demodulator for converting the optical signals so collected into a data stream, a signal processing unit for processing the data stream into an analog signal, and an analog-to-digital converter for converting the analog signal into a digital output. The demodulator includes a plurality of apertures and at least one Fabry-Perot etalon, through which at least a portion of the optical signals is transmitted. The demodulator also includes at least one phase detection region for detecting at least the portion of the optical signals transmitted through the at least one Fabry-Perot etalon to form a phase signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.