T-SHAPE POLARIZATION BEAM SPLITTER BASED ON PHOTONIC CRYSTAL WAVEGUIDE

摘要

A photonic crystal waveguide T-polarization beam splitter, comprising a photonic crystal waveguide with a completely forbidden band; after the input end (1) of the photonic crystal waveguide inputs an incident wave in any polarization direction into the polarization beam splitter, a TE component is outputted from a TE output end (2), and a TM component is outputted from the TM output end (3) of the beam splitter. The polarization beam splitter has a small size, high polarization and high light transmission efficiency, facilitates integration and has high efficiency, is suitable for large scale optical path integration, and achieves the functions of polarizing and beam splitting for different wavelengths.

主权项

1. A T-shape polarization beam splitter based on photonic crystal waveguides, comprising waveguides formed in a photonic crystal with a complete photonic bandgap, wherein after the incident wave with any polarization direction is inputted into the polarization beam splitter via the input port of the photonic crystal waveguide, TE component is outputted from the TE output port, while the TM component is outputted from TM output port of the beam splitter.