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http://dx.doi.org/10.46670/JSST.2022.31.2.107

Sensitivity Analysis for Specifications of Silicon-on-Insulator (SOI) Slot Optical Waveguide-based Single and Add-drop Channel Ring-resonant Biochemical Integrated Optical Sensors  

Jang, Jaesik (Dept. of Electronic & Computer Engineering, Graduate School, Hongik Unversity)
Jung, Hongsik (Dept. of Electronic & Computer Engineering, Graduate School, Hongik Unversity)
Publication Information
Journal of Sensor Science and Technology / v.31, no.2, 2022 , pp. 107-114 More about this Journal
Abstract
The effects of ring radius and coupling spacing on the free spectral range (FSR), full width at half maximum (FWHM), quality factor, and sensitivity of single-channel and add-drop channel slot ring resonators were systematically investigated using FIMMPROP and PICWAVE numerical software. The single-channel ring resonator exhibited better characteristics, namely, a wider FSR and narrower FWHM compared with the add-drop structure; thus, it was evaluated to be more suitable for biochemical sensors. The FSR, FWHM, quality factor, and sensitivity for a single channel ring resonator with a radius of 59.4 ㎛ and coupling gap of 0.5 ㎛ were 2.4 nm, 0.087 nm, 17677, and 550 [nm/RIU], respectively.
Keywords
SOI slot optical waveguide; Integrated optic Biochemical sensor; Ring-resonator; Sensitivity;
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