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4 March 2019 Guiding and confinement analysis in PIC-based curved slot waveguide
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Structure of a curve slot waveguide based on the Si3N4- SiO2 index contrast is demonstrated by using full vectorial Finite Element Method (FEM). Modal analysis of the device has been performed in quasi TM mode at 1550nm wavelength. Confinement factor and birefringence property of curve slot waveguide has been discussed for variations in slot width. Effective refractive index of the device has also been calculated for the large wavelength range. The waveguide is designed with silicon nitride in complementary to silicon, so it provides low loss due to roughness of wall in large bandwidth range. Photonic Integrated Circuit (PIC) based curve slot waveguide is found a good configuration of waveguide to confine the light in slot region and in terms of material integration and fabrication.
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Rukmani Singh, Ritu Raj Singh, Dharmendra Kumar, and Vishnu Priye "Guiding and confinement analysis in PIC-based curved slot waveguide", Proc. SPIE 10921, Integrated Optics: Devices, Materials, and Technologies XXIII, 109211P (4 March 2019);

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