Reflection-type coherent optical communication system combined with unidirectional optical signal amplification
US10944483B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2020 |
| Grant date | Mar 9, 2021 |
| Priority date | — |
| Expiry date | Jul 10, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/6151
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A reflection-type coherent optical communication system combined with unidirectional optical signal amplification, comprises a polarization controller, a polarization beam splitter, a polarization maintaining optical circulator, an In-line polarizer, an optical modulator, a photoelectric converter, an electrical comparator, an optical amplifier, a laser, a coupler, a reflection end and a coherent receiver. A light source is disposed at a receiving end, and the laser emits an optical carrier. The optical carrier is transmitted through the coupler and an optical fiber. Thereafter, the polarization state of the optical carrier is controlled by two ways, the optical carrier passes through the polarization controller in a first way, and two beams of light are output by the polarization beam splitter. A beam of light with high-power is modulated through a first branch, and the modulation signal is returned along an original optical path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.