De-multiplexer and method of separating modes of electromagnetic radiation
US11038618B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 11, 2018 |
| Grant date | Jun 15, 2021 |
| Priority date | — |
| Expiry date | Dec 11, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0202
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A de-multiplexer (1) for separating two co-propagating modes of electromagnetic radiation includes a volume (2) having a path therethrough for receiving electromagnetic radiation, an input (8) for directing two co-propagating modes of electromagnetic radiation to be incident upon the volume, a control source (12) of electromagnetic radiation arranged to generate a time-dependent control field. The volume is arranged and the time-dependent control field is shaped such that, when the two co-propagating modes of electromagnetic radiation and the time-dependent control field are incident upon the volume contemporaneously, the time-dependent control field causes the volume to accept one of the two modes of electromagnetic radiation onto a mode of the volume without any parametric non-linear optical interaction taking place and to reflect or transmit the other of the two modes of electromagnetic radiation, so to spatially and/or temporally separate the two modes of electromagnetic radiation from each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.