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OPTICAL SENSOR ARRANGEMENT AND METHOD FOR MEASURING AN OBSERVABLE

Optisches Resonator-Array zur Erhöhung des Dynamikumfangs
 
: Heidrich, Helmut; Lützow, Peter; Pergande, Daniel

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Frontpage ()

WO 2013EP56715 : 20130328
English
Patent, Electronic Publication
Fraunhofer HHI ()

Abstract
Source: WO14154283A1 [EN] The invention relates to an optical sensor arrangement (1) for measuring an observable, the arrangement comprising: an optical resonance circuit (4) including at least a first and a second optical resonator (41-44), each of said optical resonators comprising an entry port (51-54) for coupling light into the optical resonator and a drop port (61-64) for decoupling light from the optical resonator, wherein the first and second resonator are configured such that only a portion of the first and second resonator detects the presence of the observable, a size of the portion of the first resonator being different from a size of the portion of the second resonator and/or wherein the first and the second resonator each comprise an active layer (91"-94 "} for the selective accretion of one or more substances to be detected, where a concentration of an active material (96) of the active layer in the first and second active areas is different.

: http://publica.fraunhofer.de/documents/N-337311.html