Thermostatized Flow Cell and Hybrid LPG-FBG Configuration for Accurate Measurement of Refractive Index
Lecture Notes in Electrical EngineeringSensors(2014)
摘要
The design and characterization of a thermo-stabilized low-volume flow cell for accurate refractive index measurements using a hybrid cascaded configuration of optical fiber gratings are presented. The sensing system consists of a long period grating, which is sensitive to the refractive index of the medium surrounding the fiber, and of a methodology for correcting the sensor cross-sensitivities. This is based on a fiber Bragg grating and a thermocouple. The proposed sensing system was preliminary tested as biosensor by means of the implementation of an IgG/anti-IgG immunoassay.
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关键词
Refractive Index, Flow Cell, Fiber Bragg Grating, Grating Period, Optical Spectrum Analyzer
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