Chinese Optics Letters, 2015, 13 (2): 020901, Published Online: Sep. 25, 2018
Visualized measurement of the electric field in large aperture LiNbO3 crystal by digital holographic interferometry
090.1995 Digital holography 120.2880 Holographic interferometry 120.5050 Phase measurement 120.5475 Pressure measurement
Abstract
The electric field distribution in LiNbO 3 crystal under different electrode shape is presented by using the digital holographic interferometry. Three configurations of phase modulator including the rectangular electrode type, single-triangle electrode type, and dual-triangle electrode type are performed in this experiment. The nonuniform electric field distribution in these phase modulators are observed and the electric field increases with voltage increasing. The digital holographic interferometry with high electro-optic effect improves the measurement precision. The digital holographic interferometry provides an effective way for studying the electric field distribution. Such in situ quantitative analysis of electric field distribution is a key to optimizing electrode shape.
Zhiyong Lu, Jianfeng Sun, Yu Zhou, Ning Zhang, Zhiwei Sun, Liren Liu. Visualized measurement of the electric field in large aperture LiNbO3 crystal by digital holographic interferometry[J]. Chinese Optics Letters, 2015, 13(2): 020901.