Quantum information transmitter, quantum communication system including the same, and operating method of quantum information transmitter
US11522618B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2021 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | May 6, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0852
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Disclosed are a quantum information transmitter, a quantum communication system including the same, and an operating method of the quantum information transmitter. The quantum information transmitter includes a light source driver, a light source, and a light modulator. The light source driver generates a first light source driving signal having a first level and a second light source driving signal having a second level. The light source generates a first light signal having a first average number of photons in response to the first light source driving signal, and generates a second light signal having a second average number of photons in response to the second light source driving signal. The optical modulator modulates the first light signal to generate a target signal, and modulates the second light signal to generate a decoy signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.