EP 2260590 A1 20101215 - DISPERSION MEASUREMENT OF OPTICAL FIBRES DURING OPERATION
Title (en)
DISPERSION MEASUREMENT OF OPTICAL FIBRES DURING OPERATION
Title (de)
DISPERSIONSMESSUNG VON OPTISCHEN FASERN IM LAUFENDEN BETRIEB
Title (fr)
MESURE DE DISPERSION RELATIVE DANS DES FIBRES OPTIQUES EN COURS D'EXPLOITATION
Publication
Application
Priority
- EP 2009001522 W 20090304
- DE 102008012982 A 20080306
Abstract (en)
[origin: WO2009109365A1] The invention relates to a method and a system for transmitting data in an optical transmission system. A measuring signal is produced with a wavelength which differs from the wavelengths of a data signal containing the data to be transmitted. The measuring signal is injected into the optical transmission system, reflected once it has been guided down the transmission path, and then extracted. The injected measuring signal is compared with the extracted reflected measuring signal. Taking into account the comparison results, a compensation of the change of the data signal, resulting from the dispersion in the fibre, is carried out such that the data contained in the data signal can be used.
IPC 8 full level
H04B 10/077 (2013.01); H04B 10/08 (2006.01); H04B 10/18 (2006.01); H04B 10/2513 (2013.01)
CPC (source: EP US)
G01M 11/3145 (2013.01 - EP US); G01M 11/3154 (2013.01 - EP US); G01M 11/3163 (2013.01 - EP US); H04B 10/0775 (2013.01 - EP US); H04B 10/25133 (2013.01 - EP US)
Citation (search report)
See references of WO 2009109365A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
WO 2009109365 A1 20090911; WO 2009109365 A8 20100121; DE 102008012982 A1 20090917; EP 2260590 A1 20101215; US 2011158655 A1 20110630; US 8498536 B2 20130730
DOCDB simple family (application)
EP 2009001522 W 20090304; DE 102008012982 A 20080306; EP 09716725 A 20090304; US 92032909 A 20090304