Phase Mask

Phase mask is a high-precision diffractive optical element, divided into two categories: fiber Bragg grating and near-field holography. The grating period is 200-2650 nm, the illumination wavelength is 193-1065 nm, and the period accuracy is ± 0.01 nm. It supports uniform/chirp/multi period/tilt/phase shift customization and is used in fields such as fiber sensing, laser, optical communication, and integrated optics.