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AssigneeFraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
InventorWolfgang Schade
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The invention relates to a planar-optical element having at least one photonic component, which is arranged in at least one substrate containing or consisting of at least one polymer, wherein the substrate includes at least one first film layer having a first side and an opposite second side and a second film layer having a first side and an opposite second side, wherein the first side of the second film layer is arranged on the second side of the first film layer and at least the second film layer contains nanowires, at least in a subarea. The invention also relates to a corresponding sensor element and a method for the production thereof.
A planar-optical element comprising:
A sensor element comprising at least one waveguide which includes at least one core made of a first material having a first refractive index (n1) and a cladding which surrounds the at least one core and is made of a second material having a second refractive index (n2), wherein at least one fiber Bragg grating is inserted in the core, wherein the sensor element is arranged on a substrate which comprises at least one polymer and the substrate has at least a first film layer having a first side and an opposite second side and a second film layer having a first side and an opposite second side, wherein the first side of the second film layer is arranged on the second side of the first film layer, the cladding is part of the first film layer and the core is inserted in the first film layer, wherein at least the second film layer comprises a means for reducing a coefficient of expansion of the second film layer, the means including nanowires arranged at least in a subarea of the second film layer.
Dependencies are inferred from the claim text.