EP 1815619 A1 20070808 - COMPENSATION OF GAIN VARIATIONS IN A MULTISTAGE OPTICAL AMPLIFIER
Title (en)
COMPENSATION OF GAIN VARIATIONS IN A MULTISTAGE OPTICAL AMPLIFIER
Title (de)
KOMPENSATION VON GEWINNSCHWANKUNGEN EINES MEHRSTUFIGEN OPTISCHEN VERSTÄRKERS
Title (fr)
COMPENSATION DE VARIATIONS DE GAIN D'UN AMPLIFICATEUR OPTIQUE A PLUSIEURS ETAGES
Publication
Application
Priority
- EP 2005055189 W 20051012
- DE 102004052883 A 20041102
Abstract (en)
[origin: WO2006048367A1] The invention relates to a method for compensation of gain variations in a multistage optical amplifier (3), for the amplification of an optical wavelength multiplex signal (WDM), comprising several amplifier stages (4-6) in series, each with at least one pumping device (11). Gain variation (23) occurring after a switching process can easily be compensated for, when the power jump (20) expected at the second amplifier stage is determined and, depending thereon, a new pump power (I) is calculated for the corresponding pump device (11), the new pump power (I) is set for the pump device (11) before the power jump (20) arrives at the input of the second stage (6).
IPC 8 full level
H01S 3/10 (2006.01); H04B 10/296 (2013.01)
CPC (source: EP US)
H01S 3/06758 (2013.01 - EP US); H01S 3/1001 (2019.07 - EP US); H04B 10/296 (2013.01 - EP US); H01S 3/10015 (2013.01 - EP US); H01S 3/13013 (2019.07 - EP US); H04B 2210/003 (2013.01 - EP US)
Citation (search report)
See references of WO 2006048367A1
Citation (examination)
EP 1220382 A2 20020703 - SUMITOMO ELECTRIC INDUSTRIES [JP]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102004052883 A1 20060511; DE 102004052883 B4 20190704; CN 101053187 A 20071010; CN 101053187 B 20101103; EP 1815619 A1 20070808; US 2008037109 A1 20080214; US 7535632 B2 20090519; WO 2006048367 A1 20060511
DOCDB simple family (application)
DE 102004052883 A 20041102; CN 200580037708 A 20051012; EP 05801348 A 20051012; EP 2005055189 W 20051012; US 66674005 A 20051012