SYSTÈME DE CONTRÔLEUR DE LIGNE OPTIQUE DE COMMANDE D'UN RÉSEAU OPTIQUE PASSIF

摘要

Example embodiments describe a controller circuitry (610, 740) for controlling an optical transceiver of an optical line terminal (100), OLT, in a passive optical network (150), PON, comprising means for performing deriving (901) a level of optical beat interference, OBI, of a received upstream optical signal (102) from an optical transceiver of an optical network terminal (101), ONT; and setting (902) a wavelength (120) of a downstream optical signal (103) based on the level of OBI such that the wavelength (120) is forced to differ from the upstream optical signal wavelength (121).