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Optics Letters

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  • Vol. 27, Iss. 16 — Aug. 15, 2002
  • pp: 1385–1387

Relative humidity sensor with optical fiber Bragg gratings

Pascal Kronenberg, Pramod K. Rastogi, Philippe Giaccari, and Hans G. Limberger  »View Author Affiliations


Optics Letters, Vol. 27, Issue 16, pp. 1385-1387 (2002)
http://dx.doi.org/10.1364/OL.27.001385


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Abstract

A novel concept for an intrinsic relative humidity (RH) sensor that uses polyimide-recoated fiber Bragg gratings is presented. Tests in a controlled environment indicate that the sensor has a linear, reversible, and accurate response behavior at 10–90% RH and at 13–60°C. The RH and temperature sensitivities were measured as a function of coating thickness, and the thermal and hygroscopic expansion coefficients of the polyimide coating were determined.

© 2002 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.2400) Fiber optics and optical communications : Fiber properties
(160.5470) Materials : Polymers

Citation
Pascal Kronenberg, Pramod K. Rastogi, Philippe Giaccari, and Hans G. Limberger, "Relative humidity sensor with optical fiber Bragg gratings," Opt. Lett. 27, 1385-1387 (2002)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-27-16-1385


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