Raummultiplexausrüstung und Entsprechendes Verfahren

Details

Veröffentlichungs-Nr.

EP2903191

Aktenzeichen

EP14290025

Anmeldetag

4. Februar 2014

Veröffentlichung

25. Mai 2016

Erteilung

25. Mai 2016

Rechtsraum

EP

IPC

H04J14/02H04J14/04// H04J14/06

Abstract

The present invention refers to a method for applying spatial division multiplexing "SDM" on the signals transmitted from an optical line terminal "OLT" (5) to the optical network units "ONUs'" (11) of a passive optical network "PON" (3) through at least one few mode fiber "FMF" (1) linked to a SDM demultiplexer (7) comprising a plurality of outputs associated respectively to a spatial mode, a selected output of the SDM demultiplexer (7) being linked to at least one ONU (11) wherein the method comprises the following steps: - transmitting configuration signals from ONUS (11) connected to the selected outputs of the SDM demultiplexer (7) toward the OLT (5), - receiving and detecting the transmitted configuration signals at the OLT (5), - determining, within the OLT (5), the channel transfer function of the modes associated with the configuration signals received from the ONUs (11), - computing the inverse of the determined channel transfer function, - modulating the data optical field using the computed inverse transfer function to produce the optical signals associated with the different modes, - multiplexing spatially the modulated signals, - transmitting the multiplexed signals to the at least one FMF (1) toward the ONUs (11).

Anmelder

Firma

ALCATEL LUCENT

Land

🇫🇷 Frankreich

Fachgebiete