Open AccessThe spatially varying polarization of a focused Gaussian beam in quasi-phase-matched superlattice under electro-optic effect
Author(s) -
Haibo Tang,
Lixiang Chen,
Wei She
Publication year - 2010
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.18.025000
Subject(s) - optics , polarization (electrochemistry) , superlattice , gaussian beam , physics , electric field , gaussian , beam (structure) , laser beam quality , materials science , optoelectronics , laser beams , laser , chemistry , quantum mechanics
We present in this paper a wave coupling theory of linear electro-optic (EO) effect for quasi-phase matched (QPM) of focused Gaussian beam in an optical superlattice (OSL). The numerical results indicate that, due to the EO effect of an appropriate applied electric field, the output beam will form spatially inhomogeneous polarization, changing continuously in transverse section of beam; the confocal parameter has a significant impact on the output polarization of Gaussian beam and determines the half-wave voltage.