Alcatel Lucent

Bartlomiej Kozicki

Thomas Pfeiffer

Eric Van Den Berg

Karsten Oberle

Eric Borghs

Koen Hooghe

Zheng Li

The network comprises a plurality of optical line terminals which communicate with a plurality of optical network units over an optical distribution network. The optical distribution network includes a plurality of optical filters controlled by a network controller. A first optical line terminal sends a request for optical communication with at least one optical network unit to the network controller. The request is sent over the optical distribution network and indicates an operating wavelength of the first optical line terminal and of the at least one optical network unit. The network controller configures at least two of the optical filters to allow a passing through of the operating wavelength or of a further operating wavelength. The optical communication between the first optical line terminal and the at least one optical network unit in the operating or in the further operating wavelength is established through the optical filters.

Optical distribution network protection

Transmission device including at least one electric conductor for the transmission of an AC signal and a dielectric material at least partly surrounding the at least one conductor. The dielectric material includes dipoles. The device further includes a dipole orienting system adapted to orient the dipoles and to force the dipoles in a saturation regime in order to limit the movement of the dipoles when the at least one electric conductor conducts an AC signal.

Transmission device with dipole orienting system

For routing a data unit through a chain of nodes, the nodes are assigned addresses that are increasing in one direction of appearance of the nodes in the chain. For routing the data unit, the receiving node first verifies if the destination address of the data unit corresponds with the address of its first hop neighbor or its second hop neighbor, and the node routes the data unit directly to its first hop neighbor or its second hop neighbor if this is the case. Otherwise, the node determines the difference between the destination address of the data unit and its own address or the difference between the source and destination address of the data unit, selects a routing direction depending on the sign of this difference, and selects a first hop link when the difference is in magnitude below a threshold value or a second hop link when the difference is above the threshold value.

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Berchem, Belgium

Bartlomiej Kozicki