Optical Absorption Glucose Measurements Using 2.3- m Vertical-Cavity Semiconductor Lasers

TitleOptical Absorption Glucose Measurements Using 2.3- m Vertical-Cavity Semiconductor Lasers
Publication TypeJournal Article
Year of Publication2008
AuthorsFard, S. T., W. Hofmann, P. T. Fard, G. Bohm, M. Ortsiefer, E. Kwok, M. - C. Amann, and L. Chrostowski
JournalPhotonics Technology Letters, IEEE
Pagination930 -932
Date Publishedjun.
Keywordsaqueous glucose solutions, biomedical measurement, blood, blood absorption spectra, blood glucose concentration, chemical variables measurement, diabetes mellitus patients, glucose monitoring, infrared spectroscopy, laser applications in medicine, least squares approximations, optical absorption glucose measurements, optical absorption spectroscopy, partial least squares technique, patient health, Semiconductor lasers, sugar, surface emitting lasers, vertical-cavity semiconductor lasers, wavelength 2.3 mum

Continuous glucose monitoring has been shown to help diabetes mellitus patients stabilize their glucose levels, leading to improved patient health. One promising technique for monitoring blood glucose concentration is to use optical absorption spectroscopy. This letter proposes the use of thermally tunable 2.3-mum vertical-cavity surface-emitting lasers to obtain blood absorption spectra. The partial least squares technique is used to determine the glucose concentration from the spectra obtained in aqueous glucose solutions.


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