Large-aperture, axis-slant quasi-phase matching device using Mg-doped congruent LiNbO 3 Invited

摘要

We fabricated large-aperture axis-slant quasi-phase-matching (AS-QPM) device with 8 mm x 11 mm acceptable aperture size in 2-mm-thick Mg-doped LiNbO3 crystal at 65° slant angle with 75-µm surface period. The AS-QPM has a possibility of wafer-scale-aperture device, suitable for handling high power/energy lasers.