Abstract: The present invention refers to a method for configuring a radio communication channel between at least a first and a second devices wherein said devices comprise a physical data port and radio communication means, said method comprising the following steps: a step of setting in contact the physical data port of said at least first and second devices in order to establish a physical connection between the physical data ports of said at least first and second devices; a step of configuration data exchange through the physical connection; a step of radio communication channel configuration.

Abstract: A method for processing messages exchanged between terminals, which method comprises the steps consisting of: logging the exchanged messages; filtering the contextual data of the logged messages based on predefined criteria, in order to form contextualized logged data; applying at least one relevance rule to the contextualized logged data, in order to produce relevant data; addressing the relevant data as input to a web content management agent, particularly such as a wiki.

Abstract: The present invention refers to a method for configuring a radio communication channel between at least a first and a second devices wherein said devices comprise a physical data port and radio communication means, said method comprising the following steps: a step of setting in contact the physical data port of said at least first and second devices in order to establish a physical connection between the physical data ports of said at least first and second devices; a step of configuration data exchange through the physical connection; a step of radio communication channel configuration.

Abstract: An optical chromatic dispersion compensation module consists of a portion of fiber (10) comprising a variable pitch Bragg grating and a mechanical structure (1) consisting of two flexible mountings (2, 2?) and one fixed mounting (3). The portion of fiber (10) is attached to said mechanical structure (1) at three points: A first soft mount point (5) is connected to the fixed mounting (3) and two rigid mount points (4, 4?) are connected to the flexible mountings (2, 2?). The module also consists of a mechanical actuator (20) designed to act on the mechanical structure (1) to compress a first portion of the Bragg grating and to stretch a second portion of the Bragg grating while keeping the central section of the grating fixed. The chromatic dispersion value produced by the Bragg grating filter is thus modified, while its central wavelength remains fixed.

Abstract: The present invention relates to an optical fiber (1?) having at least one Bragg grating (11), the fiber comprising a core (2) surrounded successively by cladding (3) and a coating (4), said fiber being obtained by writing said grating in the core and/or the cladding directly through the coating which is made of a material containing an organic substance that is substantially transparent to the ultraviolet type radiation used for writing said grating, wherein the material of said coating contains an inorganic substance that is not miscible with the organic substance and that is distributed in substantially uniform manner in said material.

Abstract: An optical chromatic dispersion compensation module consists of a portion of fiber (10) comprising a variable pitch Bragg grating and a mechanical structure (1) consisting of two flexible mountings (2, 2?) and one fixed mounting (3). The portion of fiber (10) is attached to said mechanical structure (1) at three points: A first soft mount point (5) is connected to the fixed mounting (3) and two rigid mount points (4, 4?) are connected to the flexible mountings (2, 2?). The module also consists of a mechanical actuator (20) designed to act on the mechanical structure (1) to compress a first portion of the Bragg grating and to stretch a second portion of the Bragg grating while keeping the central section of the grating fixed. The chromatic dispersion value produced by the Bragg grating filter is thus modified, while its central wavelength remains fixed.

Abstract: The present invention relates to an optical fiber (1?) having at least one Bragg grating (11), the fiber comprising a core (2) surrounded successively by cladding (3) and a coating (4), said fiber being obtained by writing said grating in the core and/or the cladding directly through the coating which is made of a material containing an organic substance that is substantially transparent to the ultraviolet type radiation used for writing said grating, wherein the material of said coating contains an inorganic substance that is not miscible with the organic substance and that is distributed in substantially uniform manner in said material.

Abstract: The present invention relates to wavelength-tunable optical grating devices, to a method to tune the wavelength of the device and to communication systems using them. In particular, it concerns a tunable optical filter device with a support frame for supporting a length of optical waveguide, a waveguide grating comprising a length of optical waveguide including an optical grating where two different long period gratings are written in the same part of the length of optical waveguide, the grating is attached to the support at the opposite sides of the grating and at least one mean influencing the optical waveguide by temperature or strain.