Low loss photonic crystal waveguide with a large core radius

摘要

A dielectric core region extending along the waveguide axis, and a containment region dielectric surrounding the core around the waveguide axis, the region, the optical waveguide, a photonic crystal having a photonic bandgap confinement and a structure, in use, the region to propagate along the waveguide axis to guide the EM radiation in the frequency range of at least a first confinement. The core has a smaller average about 1.3 refractive index for the frequency in the first frequency range, the core has a diameter in the range of from about 80λ 4λ, λ is the center of the first frequency range and is the wavelength corresponding to the frequency.