Global Patent Index - EP 1005707 A1

EP 1005707 A1 20000607 - GAIN TILT CONTROL WITH MID-STAGE ATTENUATORS IN ERBIUM-DOPED FIBER AMPLIFIERS

Title (en)

GAIN TILT CONTROL WITH MID-STAGE ATTENUATORS IN ERBIUM-DOPED FIBER AMPLIFIERS

Title (de)

VERSTÄRKUNGSANSTIEGSSTEUERUNG MIT ZWISCHENDÄMPFUNGSGLIEDERN IN ERBIUM-DOTIERTEN FASERVERSTÄRKERN

Title (fr)

COMMANDE D'INCLINAISON DE GAIN COMPRENANT DES ATTENUATEURS A NIVEAU INTERMEDIAIRE DANS DES AMPLIFICATEURS A FIBRE DOPEE A L'ERBIUM

Publication

EP 1005707 A1 20000607 (EN)

Application

EP 99930403 A 19990618

Priority

  • US 9913812 W 19990618
  • US 8996798 P 19980619

Abstract (en)

[origin: WO9966610A1] Gain tilt control in erbium-doped fiber amplifiers is realized by adjusting the attenuation of mid-stage variable attenuators situated between multiple stages of the erbium-doped fiber amplifier. Positive power tilt in input signals is compensated by increasing attenuator loss while negative power tilt is compensated by decreasing the attenuator loss.

IPC 1-7

H01S 3/00

IPC 8 full level

H01S 3/06 (2006.01); H01S 3/067 (2006.01); H01S 3/10 (2006.01); H04B 10/291 (2013.01); H04B 10/294 (2013.01); H04J 14/02 (2006.01); H01S 3/094 (2006.01)

CPC (source: EP)

H01S 3/06758 (2013.01); H04B 10/291 (2013.01); H04B 10/2912 (2013.01); H04B 10/2941 (2013.01); H04J 14/02216 (2023.08); H01S 3/094096 (2013.01); H04B 2210/003 (2013.01)

Designated contracting state (EPC)

GB

DOCDB simple family (publication)

WO 9966610 A1 19991223; AU 4695199 A 20000105; CN 1310872 A 20010829; EP 1005707 A1 20000607; JP 2002518855 A 20020625

DOCDB simple family (application)

US 9913812 W 19990618; AU 4695199 A 19990618; CN 99800964 A 19990618; EP 99930403 A 19990618; JP 2000555339 A 19990618