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Polymer optical fiber Bragg grating acting as an intrinsic biochemical concentration sensor |
Optics Letters, Vol. 37, Issue 8, pp. 1370-1372 (2012)
http://dx.doi.org/10.1364/OL.37.001370
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Abstract
We demonstrate an intrinsic biochemical concentration sensor based on a polymer optical fiber Bragg grating. The water content absorbed by the polymer fiber from a surrounding solution depends on the concentration of the solution because of the osmotic effect. The variation of water content in the fiber causes a change in the fiber dimensions and a variation in refractive index and, therefore, a shift in the Bragg wavelength. Saline solutions with concentration from 0% to 22% were used to demonstrate the sensing principle, resulting in a total wavelength shift of 0.9 nm, allowing high-resolution concentration measurements to be realized.
© 2012 Optical Society of America
OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(250.5460) Optoelectronics : Polymer waveguides
ToC Category:
Fiber Optics and Optical Communications
History
Original Manuscript: January 19, 2012
Revised Manuscript: February 22, 2012
Manuscript Accepted: February 22, 2012
Published: April 12, 2012
Virtual Issues
Vol. 7, Iss. 6 Virtual Journal for Biomedical Optics
Citation
Wei Zhang, David Webb, and Gangding Peng, "Polymer optical fiber Bragg grating acting as an intrinsic biochemical concentration sensor," Opt. Lett. 37, 1370-1372 (2012)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-37-8-1370
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