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An optical device and method for strain detection. The device is provided with at least one optical fiber arranged so as to form a network. A light emitting device is arranged at one end of the fiber and a receiver is arranged at the other end, enabling the generation of information relative to the

An optical device and method for strain detection. The device is provided with at least one optical fiber arranged so as to form a network. A light emitting device is arranged at one end of the fiber and a receiver is arranged at the other end, enabling the generation of information relative to the light intensity transmitted by the fiber or fibers in the presence of strain, and a measurement corresponding to the strain.

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An optical device for strain detection, which device comprises: at least one optical fiber (1) disposed in such a manner as to form a network (2), said at least one fiber being disposed in such a manner as to form a regular meshed network, each mesh of the network being delimited by two weft lines (

An optical device for strain detection, which device comprises: at least one optical fiber (1) disposed in such a manner as to form a network (2), said at least one fiber being disposed in such a manner as to form a regular meshed network, each mesh of the network being delimited by two weft lines (i) and two warp lines (j) which are successive and which are respectively constituted by said at least one fiber spaced according to a specified pitch, the spacing pitch of the warp and weft lines being equal to k l2 where k is an integer equal to or greater than 1 and where ll2pa/(2D2D1-no2/nc2), no being the refractive index of the sheath of the optical fiber and nc the refractive index of the core of the fiber respectively, means for emitting light (E) which are disposed at one end, referred to as the entrance end of said at least one fiber and means for receiving light (R) which are disposed at the other end, referred to as the exit end, of said at a least one fiber, said receiving means (R) being capable of supplying information relating to the luminous intensity transmitted by said at least one fiber of the network and a corresponding measurement of the strain.