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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 31 — Nov. 1, 2012
  • pp: 7643–7647

Nanocomposite polyacrylamide based open cavity fiber Fabry–Perot humidity sensor

Jun Yao, Tao Zhu, De-Wen Duan, and Ming Deng  »View Author Affiliations


Applied Optics, Vol. 51, Issue 31, pp. 7643-7647 (2012)
http://dx.doi.org/10.1364/AO.51.007643


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Abstract

A humidity sensor with a low temperature sensitivity is proposed and demonstrated by coating a nanocomposite hygrometer polyacrylamide in an open interferometric cavity of a fiber Fabry–Perot interferometer. In this paper the Fabry–Perot structure is formed by splicing one short section of single mode fiber between two sections of single mode fiber with a larger offset fusing method. Experimental results show that relative humidity (RH) sensitivity of the sensor is 0.1nm/(1%RH) in the range of 38% to 78% RH and 5.868nm/(1%RH) in the range of 88% to 98% RH, respectively.

© 2012 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.3180) Instrumentation, measurement, and metrology : Interferometry

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: July 11, 2012
Revised Manuscript: September 26, 2012
Manuscript Accepted: October 1, 2012
Published: October 29, 2012

Citation
Jun Yao, Tao Zhu, De-Wen Duan, and Ming Deng, "Nanocomposite polyacrylamide based open cavity fiber Fabry–Perot humidity sensor," Appl. Opt. 51, 7643-7647 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-31-7643

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