Patent · US Expired

Optical amplifier device

US5959766A · kind A · utility

22Cited by

5References

6Claims

0Family size

Assignee

Alcatel Alsthom Compagnie Generale d'Electricite · FR

Inventors

Jurgen Otterbach · Stuttgart, DE
Thomas Pfeiffer · Kumhausen, DE

Key dates

Filing date	Apr 7, 1998
Grant date	Sep 28, 1999
Priority date	—
Expiry date	Apr 7, 2018

Classification

Technology area (CPC H)Electricity
CPC primaryH01S3/094003
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

An optical amplifier device (REG) comprises a variable optical attenuator (DG), a control unit (CTRL), and an optical amplifier (EDFA). The gain of the amplifier (EDFA) and the attenuation of the attenuator (DG) are adjusted by the control unit (CTRL) based on a correlation (KOR) of the levels of the optical signals at the output of the optical amplifier (EDFA).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.