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U. S. RAIKAR1,* , V. K. KULKARNI1, A. S. LALASANGI1, K. MADHAV2, S. ASOKAN3
A fiber optic sensing system for measurement of concentration of ethanol solution, based on fiber Bragg grating (FBG) technology is presented. The fabrication process is described and its performance is evaluated. Concentration change of surrounding chemical solution can be detected by the peak wavelength using an optical spectrum analyzer. The ethanol solution under test was thermo saturated at 25 oC in order to avoid wavelength shifts due to temperature variation. We observed shifts in Bragg wavelength for various concentrations of ethanol. Peaks were well resolved. The sensor performance is very good at lower concentrations of ethanol.
Phase mask, Fiber Bragg Grating, Ethanol, Concentration sensor.
U. S. RAIKAR, V. K. KULKARNI, A. S. LALASANGI, K. MADHAV, S. ASOKAN, Etched fiber Bragg grating as ethanol solution concentration sensor, Optoelectronics and Advanced Materials - Rapid Communications, 1, 4, April 2007, pp.149-151 (2007).
Submitted at: March 5, 2007
Accepted at: March 14, 2007
Optoelectronics and Advanced Materials - Rapid Communications
(2024): Impact Factor = 0.4 - Journal Citation Reports (Clarivate Analytics, 2025)
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