Extremely compact slanted waveguide hybrid plasmonic polarization rotator

In this study, we proposed a novel slanted waveguide hybrid plasmonic polarization splitter based on mode evolution at 1.55 µm wavelength on silicon-on-insulator technology. The TM polarization is rotated to the TE polarization with a conversion length of 370 nm, polarization conversion efficiency of 85% and polarization extinction ratio larger than 18 dB.