Optically amplified receiver
US6980747B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2000 |
| Grant date | Dec 27, 2005 |
| Priority date | — |
| Expiry date | Aug 29, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/675
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An integrated, optically amplified receiver includes an optically pumped optical preamplifier for receiving, generally, wavelength division multiplexed optical communication signal over an optical communications line. A PIN photodetector receives the optical communication signal as a filtered demultiplexed signal from the optical preamplifier and converts the optical communication signal into an electrical communication signal. An amplifier circuit amplifies the electrical communication signal for digital retiming or demodulation. A housing or printed circuit card assembly contains the optical preamplifier, filter or demultiplexer, PIN photo detector and amplifier circuit as an integrated receiver unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.