Patent · US Expired

Optical amplifier with automatic level control and automatic gain control

US6452722B1 · kind B1 · utility

9Cited by

7References

5Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Peter Krummrich · Munich, DE
Claus-Jörg Weiske · Fürstenfeldbruck, DE
Martin Schreiblehner · Lübben (Spreewald) - Lubin (Błota), DE
Wolgang Mader · Lübben (Spreewald) - Lubin (Błota), DE

Key dates

Filing date	Apr 25, 2000
Grant date	Sep 17, 2002
Priority date	—
Expiry date	Apr 25, 2020

Classification

Technology area (CPC H)Electricity
CPC primaryH04B2210/077
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Regulated optical amplifiers for wavelength-division multiplex signal transmission that include a first control device for regulating the gain and a second, dominating control device having a significantly slower control behavior for regulating the output power level in conformity with a supplied rated power value. Both rapid level changes as well as slow changes in attenuation of the transmission path can be leveled with a transmission path utilizing these amplifiers.

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