Periodic Poling in 3-mm-Thick MgO:LiNbO₃Crystals

Abstract

We have demonstrated periodical poling in 3-mm-thick 5 mol% MgO-doped LiNbO3(MgO:LN) crystals. Pulse-to-pulse poling processes in MgO:LN are characterized by an in situ optical monitoring method. Structures with a 30 µm period were fabricated in MgO:LN under an elevated temperature condition of 80°C for the first time.