Note: Electro-optic coefficients of Li-deficient MgO-doped LiNbO3 crystal

A number of Li-deficient MgO-doped LiNbO3 (LN) crystals with different Li2O contents ranging from 43.4 mol. % to 44.5 mol. % were prepared by carrying out the Li-poor vapor transport equilibration treatment on 5 mol. % (in growth melt) MgO-doped LN crystals. Unclampedelectro-optic (EO) coefficients γ13 and γ33 of these crystals were measured by Mach-Zehnder interferometry. The results show that γ13 ( γ33) increases linearly by ∼14% (11%) as the Li2O content decreases from 44.5 mol. % of the as-grown state to 43.4 mol. % of the Li-deficient state. This feature is desired for the EO application of the Li-deficient MgO:LN crystal.

Source: Review of Scientific Instruments - September 28, 2016 Category: Physics Authors: Wan-Ying Du, Zi-Bo Zhang, Shuai Ren, Wing-Han Wong, Dao-Yin Yu, Edwin Yue-Bun Pun and De-Long Zhang Source Type: research