Title :
High Confinement Factor Ridge Slot Waveguide for Optical Sensing
Author :
Huang Zengzhi ; Yong Zhang ; Cheng Zeng ; Danping Li ; Nisar, Muhammad Shemyal ; Jinzhong Yu ; Jinsong Xia
Author_Institution :
Wuhan Nat. Lab. for Optoelectron., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
A ridge slot waveguide on 220 nm silicon-on-insulator platform is proposed and theoretically investigated. The confinement factor of the ridge slot waveguide is much higher than the fully etched slot waveguide in the case of air-cladding. The sensitivity of sensors based on ridge slot waveguides is higher than that of the fully etched slot waveguides when the cladding refractive index is in the range of 1.0-1.18.
Keywords :
claddings; integrated optics; optical sensors; optical waveguides; refractive index; ridge waveguides; silicon-on-insulator; air-cladding; cladding refractive index; fully etched slot waveguides; high confinement factor ridge slot waveguide; optical sensing; sensor sensitivity; silicon-on-insulator platform; wavelength 220 nm; Optical sensors; Optical waveguides; Optimized production technology; Refractive index; Sensitivity; Silicon; Semiconductor waveguides; optical sensors; semiconductor waveguides; silicon devices;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2015.2466595
