IMPLEMENTATION OF LONG-PERIOD FIBER GRATINGS FOR REFRACTIVE INDEX MEASUREMENT OF LIQUIDS

Authors : Cansu İDE, Kıvılcım Yüksel ALDOĞAN

Pages : 815-830

Doi:10.18038/aubtda.413304

View : 9 | Download : 7

Publication Date : 2018-12-31

Article Type : Research Paper

Abstract :Refractive index insert ignore into journalissuearticles values(RI); is one of the important optical parameters which is unique for each material. Increased public awareness and legal requirements for quality standards in different areas have created a need for reliable, fast, automated, remote and/or portable refractive index sensors with multi-measurement capability. Fiber-based RI sensors are very good candidates in providing attractive solutions in such application areas and have been attracting a growing interest by the scientific community. In this work, an intrinsic fiber optic refractive index sensor has been investigated. It uses a long-period fiber grating insert ignore into journalissuearticles values(LPFG); and an Optical Spectrum Analyzer insert ignore into journalissuearticles values(OSA);, as sensor head and interrogator unit, respectively. New measurements of refractive indices of common solvents and solutions at low-loss telecom wavelengths have been successfully demonstrated by using the proposed sensor. The reported measurement results are in excellent agreement with our simulation results and reference measurements realized by conventional measurement techniques.
Keywords : Algılayıcı, fiber optik