Analysis of Propagation Loss in Silicon-on-Insulator based Photonic Rib Waveguide with Small Cross Section

Silicon-on-Insulator based Rib waveguides are very popular for optical communication in recent years. Effective refractive index, propagation loss and propagation length have been analyzed at different widths and heights of waveguide. Compared to reported works, significantly lesser propagation loss, up to 0.1 dB/cm, has been achieved with light confinement of similar to 72%.