Open AccessWave coupling theory of Quasi-Phase-Matched linear electro-optic effect
Author(s) -
Guoliang Zheng,
Hongcheng Wang,
Weilong She
Publication year - 2006
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.14.005535
Subject(s) - electro optic effect , wavelength , optics , coupling (piping) , nonlinear system , physics , perturbation (astronomy) , nonlinear optics , ray , coupled mode theory , perturbation theory (quantum mechanics) , phase (matter) , refractive index , materials science , electric field , quantum mechanics , metallurgy
Starting from Maxwell's equations and taking the nonlinearity of linear electro-optic effect as a perturbation, we derive general wave coupling equations of quasi-phase-matched (QPM) linear electro-optic effect. And then we use the equations to study the electro-optic effect in PPLN. The numerical results indicate that the QPM condition plays an important role in electro-optic coupling. In addition, the coupling is very sensitive to the temperature and incident light wavelength, but it has a large tolerance to the direction of incident light.