Optical Waveguide Refractive Index Sensor for Biochemical Sensing

This study describes the basic principles of optical waveguide refractive index sensing and various design structures sensors. These waveguides generate different resonances, which cause changes in temperature are subsequently used to detect concentration analyses. First, structural characteristics performance indices microring sensor interferometer studied based on waveguide. Second, principle detection mechanism two types employed these sensors analyzed. Then, classified discussed from perspective materials structures, as well substances be measured. Simultaneously, indicators such sensitivity range compared summarized. The comparison results show that there is a compromise between quality factor sensor. Finally, applications biochemical field for material discussed, showing has significant advantages over other