Alcatel Lucent

Alcatel

Nokia Technologies Oy

Inria Institut National De Recherche En Informatique Et En Automatique

Pierre Peloso

Gabriel Charlet

Nicolas Le Sauze

Thierry Zami

Emmanuel Dotaro

Jean-Paul Faure

Jean-Christophe Antona

Olivia Rofidal

Eric Fabre

Benoit Ronot

Cedric Vandenweghe

Vincent Verdot

Pascal Pecci

Magali Prunaire

M Benoit Ronot

Rofidal Olivia

A technique is provided for a personalized access to a storage device from a communication device through a local network, with public data and private data being stored in the storage device. The storage device is configured to retrieve an identifier of the local network, allow access to the public data and a set of private data if the retrieved identifier is included in a first list of local networks, and deny access to the set of private data if the retrieved identifier is not included in the first list of the local networks.

Personalized access to storage device through a network

The present invention refers to a method for adjusting power levels of channels () in an optical link () of an optical network comprising at least one optical amplifier () wherein the power distribution among the channels () of the optical link () is achieved in function of:

Method and equipment for adjusting power amplification

A method for controlling the establishment of a connection within an optical network comprising the steps consisting in: transmitting a control message node-to-node along a path of said connection from an input node (A) to an output node (D) of the connection, said control message comprising a step indication field to indicate a current step () of the connection establishment, performing a local operation () corresponding to said step indication field within at least one node, transmitting a step acknowledgment to the connection's input node after having completed said local operation, in response to receiving the step acknowledgment, transmitting another control message node-to-node from the input node, wherein said step indication field indicates a following step () within a sequence of steps.

Method for controlling the establishment of a connection in an optical network

An optical connection path surveillance device for a transparent optical network includes analysis means () adapted to detect node signatures carried by an optical signal in transit at a point of said network, each node signature including information uniquely associated with a switching node of the network. The analysis means include calculation means () adapted to determine a number of hops from said detected node signatures and error detection means () adapted to compare said number of hops to a predetermined threshold in order to detect a routing error in relation to said optical signal if said threshold is exceeded. In one embodiment, a surveillance device detects looped paths on the basis of the detected node signatures.

Method and device for surveillance of optical connection paths for a transparent optical network

An optical switching device is provided. The device includes an input stage () comprising broadcast modules (MD-MD) that provide duplicates of the same multiplex, an output stage () comprising programmable multiplexer modules (OWS-OWS) having inputs associated with respective broadcast modules, and an intermediate stage () connecting each programmable multiplexer module input that is associated with a broadcast module to an output of the associated broadcast module. Each broadcast module includes a programmable demultiplexer module (IWS-IWS) having a transit output (B), and a selection output (B) and a star coupler (SC-SC). The transit output (B) is connected to a first input (C) of the coupler and an input and an output of a processing device (RG, RG') are respectively connected to a selection output (B) and to a second input (C) of the coupler.

Reconfigurable semitransparent optical switching device

A device (D) dedicated to optical switching in a switching node (NC) comprises at least one first switching matrix (MC) and one second switching matrix (MC) coupled to each other and each comprising i) a first stage including Ndiffusion modules each having a first input and Mfirst outputs and ii) a second stage including Nfusion modules each having Nsecond inputs each coupled to one of the Mfirst outputs of one of the Ndiffusion modules via an optical line, at least one third input and one second output. The second stage of at least one of the matrices comprises at least one additional fusion module having Nsecond inputs adapted to apply optical power adjustment and one second output. At least one optical line (LS) couples the second output of an additional fusion module of one of the matrices (MC) to a third input of each of the Nfusion modules of the other matrix (MC).

Optical switching device for a transparent node of high switching degree adapted to spectral equalization

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Nozay, France

Pierre Peloso