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Conference Paper
Design of Integrated Refractive Index Sensor based on Bend Waveguide with a Trench Structure
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- Authors
- Jin Hwa Ryu, Hoe-Sung Yang, Chan-Mo Kang, Lee-Mi Do, Kang Bok Lee, Nam Kyoung Um, Kyu-Ha Baek
- Issue Date
- 2014-09
- Citation
- International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD) 2014, pp.71-72
- Language
- English
- Type
- Conference Paper
- Abstract
- This study proposes a novel optical sensor structure based on a refractometer integrating a bend waveguide and an air trench. The optical sensor consists of a U-bend waveguide connecting four C-bends and a trench structure to expose the partial core layer. The U-bend waveguide consists of one C-bend with the maximum optical loss and three C-bend with minimum losses. A trench provides a quantitative measurement environment, and is aligned with the sidewall of a C-bend having the maximum loss. The intensity of the output power is dependent on the change of refractive index of the measured material.
- KSP Keywords
- Change of refractive index, Optical losses, Output power, Sensor based, Trench structure, U-bend waveguide, optical sensor, quantitative measurement, refractive index sensor