Open AccessComparative studies on annealed proton exchange waveguides inY-cut MgO:LiNbO.3 and Z-cut LiNbO.3
Author(s) -
Xun Cao,
Zhiguo Wang,
He Sai-Ling,
Yuxing Xia,
Zhan Li
Publication year - 2004
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.53.3786
Subject(s) - materials science , annealing (glass) , lithium niobate , proton , waveguide , optics , diffraction , infrared , refractive index , optoelectronics , composite material , physics , quantum mechanics
Proton exchange waveguides in MgO:LiNbO.3 and LiNbO.3 crystals were fabricated , and the diffusion coefficients for the proton exchange process are obtained. The evolution characteristics of the waveguide index profile in the annealing process are studied. The structural deformation of the proton exchange waveguides in Mg O:LiNbO.3 and LiNbO.3 and the restoration effect of annealing are also studied tho roughly by the x-ray diffraction method and the OH-infrared absorption method. The optical and structural characteristics of annealed proton exchange waveguides in MgO:LiNbO.3 and LiNbO.3 are analysed and compared with eath other.