Optoelectronic analog-to-digital converter using wavelength division multiplexing
US6100831A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 30, 1998 |
| Grant date | Aug 8, 2000 |
| Priority date | — |
| Expiry date | Jun 30, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F7/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An optoelectronic system is provided for converting analog electrical sigs into digital electrical signals. An optical carrier produced by a laser source is separated into spectral components. An electro-optical modulator modulates the optical carrier with a radio frequency input signal so as to produce an amplitude modulated optical output signal. The optical output signal is then outputted to a wavelength division demultiplexer which separates the output signal into a plurality of separate channels, based on wavelength. Photodetectors connected to each of the channels convert the separated signals into analog electrical signals. These analog electrical signals are outputted to a plurality of standard analog to digital converters which convert the analog electrical signals into digital signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.