Asymmetric direct detection of optical signals
US11799560B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2022 |
| Grant date | Oct 24, 2023 |
| Priority date | — |
| Expiry date | Jan 30, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/615
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An asymmetric coherent receiver includes an optical front end configured to split a received optical signal into two paths, wherein the split received optical signal experiences a different optical transfer function in one of the two paths; two photodetectors each configured to detect power one of the split received optical signals in each of the two paths to obtain corresponding electrical signals; and circuitry configured to perform electrical domain extraction of information of each of the corresponding electrical signals from the two paths, wherein the different optical transfer function provides additional information utilized in optical field reconstruction via direct detection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.