Patent ID: 9562810
Date: 2017-02-07
CPC Classifications: G01J,G01N

Claim:
1. A deformable interferometric sensor comprising: a pair of parallel and spaced apart reflectors forming a Fabry-Perot cavity, each one of the reflectors having an outer surface and an inner surface, the pair of reflectors separated by a distance L; an optical fiber interfaced with the outer surface of each one of the reflectors and having an optical axis that intersects the pair of reflectors; and a polymer provided between the reflectors, the polymer exhibiting expansion along the optical axis of the optical fiber upon absorption of at least one analyte, and inducing a shift of a resonance wavelength substantially proportional to a concentration of the at least one analyte as absorbed, the expansion causing an increase in the distance L between the reflectors and deforming the Fabry-Perot cavity, wherein the polymer has opposite sides and is provided between the reflectors with each one of the opposite sides adjacent a corresponding one of the reflectors, and the expansion of the polymer is constrained by the corresponding one of the reflectors.