We demonstrate a liquid phase refractometer that utilizes fiber Bragg gratings integrated across planar microfluidic channels. We test the device using various concentrations of saline solution and report sensitivity to refractive index changes of 0.2%.
© 2006 Optical Society of America
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.5710) Instrumentation, measurement, and metrology : Refraction
P. Domachuk, I. C. Littler, M. Cronin-Golomb, and B. J. Eggleton, "Compact Microfluidic Refractometer," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2006), paper JThC88.
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