全讯光栅是一种透过两束雷射干涉形成特定条纹的绕射光栅，其驻波图案显示在涂有光刻胶的抛光衬底上。

A holographic grating is a type of diffraction grating formed by an interference-fringe field of two laser beams whose standing-wave pattern is exposed to a polished substrate coated with photoresist. Processing of the exposed medium results in a pattern of straight lines with a sinusoidal cross section.