We demonstrate a glucose fiber sensor for measuring glucose concentration in serum. High resolution and rapid measurement are achieved through the integration of highly selective enzymes and heterodyne interferometry. The best resolution and response time obtained are 0.14 mg/dL and 1.3 s, respectively. The stability of the sensor is also verified by investigating the initial phase variation. Experimental results show that the fiber sensor can be reused more than 10 times.
© 2011 Chinese Optics Letters
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(060.2840) Fiber optics and optical communications : Heterodyne
Cheng-Chih Hsu, Yi-Cheng Chen, Ju-Yi Lee, and Chyan-Chyi Wu, "Reusable glucose fiber sensor for measuring glucose concentration in serum," Chin. Opt. Lett. 9, 100608- (2011)