Polarization handling devices based on silicon waveguides

초록

Integrated polarization handling devices based on silicaon waveguides, such as polarization beam splitter (PBS), polarization rotator (PR), and polarizer, will be introduced. A bridged-waveguide-type PBS was demonstrated to ensure the polarization extinction ratio (PER) greater than 20 dB for both transverse electric (TE) and transverse magenetic (TM) mode inputs. An integrated PR formed with an asymmetric silicon waveguide having an internal trench was demonstrated for the polarization-mode conversion. An integrated TM-mode pass filter was demonstrated based on one-dimensional photonic crystal waveguide (1-D PhCW). The experimentally demonstrated results on those devices will discussed in this presentation.