Polarization-transparent microphotonic devices in the strong confinement limit

摘要: Microphotonic structures that strongly confine light, such as photonic crystals and micron-sized resonators, have unique characteristics could radically advance technology1,2,3,4,5,6. However, devices cannot be used in most applications because of their inherent polarization sensitivity; they respond differently to light polarized along different axes7,8,9. To take advantage the distinctive properties these structures, a general, integrated, broadband solution sensitivity is needed. Here, we show first demonstration solution. It enables arbitrary, polarization-sensitive, strong-confinement (SC) microphotonic rendered insensitive (transparent) input at all wavelengths operation. test our approach, create polarization-transparent add–drop filter from polarization-sensitive microring resonators. shows almost complete elimination over 60-nm bandwidth measured, while maintaining outstanding performance. This development milestone for SC microphotonics, allowing photonic-crystal several areas, including communications, spectroscopy remote sensing.