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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 9, Iss. 4 — Apr. 1, 2014

Glucose sensor with a Sagnac interference optical system

Tatsuya Kumagai, Yusaku Tottori, Ryusuke Miyata, and Hiroshi Kajioka  »View Author Affiliations

Applied Optics, Vol. 53, Issue 4, pp. 720-726 (2014)

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The angle of optical rotation was measured by detecting the phase difference between clockwise and counterclockwise circular polarized light that propagated in a sensing loop. This polarimeter, or glucose sensor, consisted of a Sagnac interference optical system with a polarization-maintaining optical fiber, so it was not affected by the control limitations of the polarization rotation angle or the optical power fluctuation that occurs with scattered light, reflection, or polarization rotation in an optical system. The angle of rotation was measured from the phase difference of the glucose sensor when the concentration of glucose was changed. We confirmed that the resolution of optical rotation was 5×104deg, and the resolution of the glucose concentration was 1mg/dl accordingly. The measured specific rotation of glucose was mostly equal to a physical property value. One applications of this glucose sensor is in measuring the blood sugar levels of diabetic patients.

© 2014 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.2420) Fiber optics and optical communications : Fibers, polarization-maintaining

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: October 30, 2013
Manuscript Accepted: December 20, 2013
Published: January 30, 2014

Virtual Issues
Vol. 9, Iss. 4 Virtual Journal for Biomedical Optics

Tatsuya Kumagai, Yusaku Tottori, Ryusuke Miyata, and Hiroshi Kajioka, "Glucose sensor with a Sagnac interference optical system," Appl. Opt. 53, 720-726 (2014)

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