Silicon Carbide Waveguide (AI glasses)

A silicon-carbide (SiC) waveguide in AI-glasses talk is an optical path material choice — SiC waveguides are discussed for brighter, thinner AR/AI glasses displays.

Silicon Carbide Waveguide (AI glasses) illustrated intro
Light → SiC guide → HUD.

It is a component/tech term, not a consumer SKU by itself.