Apparatus for time division/wave division conversion
US6388781B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 25, 1998 |
| Grant date | May 14, 2002 |
| Priority date | — |
| Expiry date | Nov 25, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0223
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A multiplexer demultiplexer for conversion of optical data between a serial bit stream having a bit rate in excess of that of conventional photodetection devices and multiple bit streams at a bit rate that may be serviced using conventional photodetection devices. A wavelength conversion element uses four-wave mixing to produce from a single high rate data stream multiple intermodulation products that together represent the input serial data stream in wavelength division multiplexed (WDM) form. A related device multiplexes multiple WDM data streams provided at conventional bit rates to a serial bit stream having a bit rate in excess of that of conventional photodetection devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.