Abstract

An electro-optic coefficient (EOC) is an important optical property of optical crystals. In this work, a single-path multiple reflection interferometer is proposed to measure the components of signed EOCs with high precision. With the help of the normalization method, the influence of incident light was removed, and repeatability of the experimental results was improved. The signed EOCs of a congruent ${{\rm LiNbO}_3}$ crystal were determined under a small external electric field as ${\gamma _{31}} = + 9.6 \pm 0.3\;{\rm pm/V}$ and ${\gamma _{33}} = + 29.5 \pm 0.5\;{\rm pm/V}$. This study may contribute to the development of potential anisotropic devices of optical crystals.

© 2021 Optical Society of America

Accurate measurement of electro-optic coefficients of undoped and MgO-doped stoichiometric LiNbO₃

Shota Nakano, Kazuki Akiyama, and Ichiro Shoji
Opt. Mater. Express 7(3) 939-944 (2017)

Measurement method of electro-optic coefficients using photoelastic modulation

Shuang Wang, Zhibin Wang, Xie Han, and Kewu Li
Appl. Opt. 58(16) 4271-4276 (2019)

Mid-infrared electro-optic modulator based on a graphene-embedded plasmonic rib waveguide with ultrahigh electro-optic wavelength tuning

Chenyang Hou, Tao Ma, Jinhui Gao, Heng Liu, and Fang Wang
Appl. Opt. 60(10) 2795-2802 (2021)

Effect of multiple reflections on retardation-based electro-optic measurements

N. G. Theofanous and A. T. Arapoyianni
J. Opt. Soc. Am. A 8(11) 1746-1754 (1991)

Examining the change of half-period voltage in longitudinal electro-optic modulation and residual stress of potassium dihydrogen phosphate crystal

Hui Liu, Zeliang Gao, Shenglai Wang, Xianglin Li, Weidong Li, Duanliang Wang, Pingping Huang, Longyun Xu, Liyuan Zhang, and Bo Wang
Appl. Opt. 62(18) 4971-4977 (2023)