Guided-mode resonance optical filters and components for embedded photonics

International audienceGuided-mode resonance filters are a new class of optical filters relying on subwavelength structuring ontop of an optical waveguide.From this simple coupling of waveguide and subwavelength structures, a whole taxonomy of optical filters can be derived: ultranarrow tunable filters, polarizing or polarisation-independent filters, transmission filters, small-size, angularly-tolerant filters at fixed wavelength.These filters rely on generic design rules and have been demonstrated in the visible, near-infrared, telecom infrared and mid-infrared.Compared to thin-film multistack technologies used for traditional optical filters, the fabrication of guided-mode resonance filters has a number of specific advantages and challenges that will be presented