Photonic Crystal Polarization Beam Splitter in Silicon-On-Insulator Platform
نویسندگان
چکیده
In this work we report an ultracompact (8.7 μm x 10.6 μm) integrated planar photonic crystal polarization beam splitter in silicon-on-insulator platform with 18.6 dB and 11.1 dB extinction ratio at a wavelength of 1520 nm at the outputs for transverse-magnetic and transverse-electric polarization, respectively. The physical separation of both polarization states is achieved by negative and positive refraction through a compact (2.7 μm x 9.6 μm) hexagonal type photonic crystal in silicon substrate with silica filled holes. The simulation and measurements show the polarization splitting effect in a wide wavelength range.
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