EP 1142166 A1 20011010 - OPTICAL AMPLIFIER WITH POWER DEPENDENT FEEDBACK
Title (en)
OPTICAL AMPLIFIER WITH POWER DEPENDENT FEEDBACK
Title (de)
OPTISCHER VERSTÄRKER MIT LEISTUNGSABHÄNGIGER RÜCKKOPPLUNG
Title (fr)
AMPLIFICATEUR OPTIQUE AVEC RETOUR DEPENDANT DE LA PUISSANCE
Publication
Application
Priority
- US 9929620 W 19991214
- US 11499699 P 19990106
Abstract (en)
[origin: WO0041346A1] An optical amplifier includes an optical feedback resonant laser cavity (OFRC) including a power dependent loss element (PDLE) having the characteristic that as the incident laser power on the PDLE increases the cavity loss decreases. The OFRC with the PDLE provides optical gain control or optical power control for a WDM amplifier or a single channel power equalization amplifier (PEA), respectively. A 1xNxN WADM node incorporating more than one of these amplifiers, at least some of which commonly share a pump source, and a method for controlling a transient power change in a single channel optical amplifier or reducing a DC gain error in a WDM optical amplifier that are subject to dynamically variable operating conditions at an input of the amplifier, are also disclosed.
IPC 1-7
IPC 8 full level
H01S 3/10 (2006.01); H01S 3/06 (2006.01); H01S 3/13 (2006.01); H04B 10/296 (2013.01); H04J 14/00 (2006.01); H04J 14/02 (2006.01); H04Q 11/00 (2006.01)
CPC (source: EP KR)
G02B 6/00 (2013.01 - KR); H01S 3/1302 (2013.01 - EP); H04B 10/296 (2013.01 - EP); H04J 14/0221 (2013.01 - EP); H04J 14/0201 (2013.01 - EP); H04Q 2011/0049 (2013.01 - EP)
Citation (search report)
See references of WO 0041346A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 0041346 A1 20000713; AU 2361200 A 20000724; CA 2357496 A1 20000713; CN 1357180 A 20020703; EP 1142166 A1 20011010; JP 2002534815 A 20021015; KR 20010113641 A 20011228; TW 459449 B 20011011
DOCDB simple family (application)
US 9929620 W 19991214; AU 2361200 A 19991214; CA 2357496 A 19991214; CN 99815151 A 19991214; EP 99967309 A 19991214; JP 2000592978 A 19991214; KR 20017008599 A 20010706; TW 89100569 A 20000112