The clamped and unclamped effective electro-optic coefficients of zirconium-doped congruent lithium niobate crystals

5th International Conference New Achievements in Materials and Environmental Science

材料科学;生态环境科学

Abarkan, Mustapha^1,2,3 ; Danielyan, Anush^2,3,4 ; Kokanyan, Ninel^2,3 ; Aillerie, Michel^2,3 ; Kostritskii, Sergey^5 ; Kokanyan, Edvard^4,6

LSI, Faculté Polydisciplinaire de Taza, Université Sidi Mohammed Ben Abdallah de Fè, BP 1223, Taza-Gare, Morocco^1

Université de Lorraine, LMOPS, EA 4423, Metz

57070, France^2

CentraleSupélec, LMOPS, Metz

57070, France^3

Institute for Physical Researches, National Academy of Sciences of Armenia, Ashtarak-2, Armenia^4

RPC Optolink, Sosnovaya al. 6, Zelenograd, Moscow

124489, Russia^5

Armenian State Pedagogical University, Tigran Mets Ave., 17, Yerevan, Armenia^6

关键词: Congruent lithium niobate;    Dielectric characterization;    Distribution coefficient;    Dopant concentrations;    Effective electro-optic coefficient;    Electro optic coefficient;    Optical arrangement;    Threshold concentrations;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/879/1/012004/pdf
DOI  :  10.1088/1742-6596/879/1/012004

来源: IOP

【 摘 要 】

All coefficients of the unclamped and clamped electro-optic tensor of zirconium-doped congruent LiNbO3single crystals are determined as function of the dopant concentration at room temperature. With a distribution coefficient of zirconium closer to one in the considered range, the dopant concentration is in the range up to 2.5 mol% of ZrO2. The electro-optic coefficients are measured by direct techniques based on interferometric and Sénarmont optical arrangements at the wavelength of 633 nm. It is found that all the unclamped and clamped effective electro-optic coefficients are relatively constant, except for the sample grown with 2 mol% of zirconium. The electro-optic behavior of LN:Zr as function of the dopant concentration was confirmed by dielectric characterizations. The concentration equal 2 mol% of ZrO2can be considered to a threshold concentration for various physical and optical properties.