Analysis of the acoustooptic interaction in proton-exchanged lithium niobate [light deflectors]

Author

Biebl, Erwin M. ; Russer, Peter

Author_Institution

Inst fuer Hochfrequenztech. Tech. Univ. Munchen, Germany

fYear

1990

fDate

4-7 Dec 1990

Firstpage

599

Abstract

The calculation of the efficiency of planar acoustooptic light deflectors based on PE:LiNbO₃ waveguides is presented. Both the collinear and the noncollinear interaction geometries on Y-cut LiNbO₃ are evaluated. By use of recently determined elastic stiffness constants of PE:LiNbO₃, the acoustic and electric field distributions of the propagating Rayleigh waves are calculated rigorously. Coupling between the optical modes is treated by a coupled mode approach. The dependence of the coupling strength on the acoustic frequency, mode type, and waveguide parameter is given

Keywords

acousto-optical devices; acousto-optical effects; integrated optics; lithium compounds; optical deflectors; optical waveguides; Y-cut; acoustic field distributions; acoustic frequency; acoustooptic interaction; collinear interaction geometries; coupled mode approach; coupling strength; efficiency; elastic stiffness constants; electric field distributions; noncollinear interaction geometries; planar acoustooptic light deflectors; propagating Rayleigh waves; proton exchanged LiNbO₃; waveguide parameter; Acoustic propagation; Acoustic waveguides; Acoustic waves; Frequency; Geometrical optics; Light deflectors; Optical coupling; Optical propagation; Optical waveguides; Planar waveguides;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1990. Proceedings., IEEE 1990

Conference_Location

Honolulu, HI

Type

conf

DOI

10.1109/ULTSYM.1990.171433

Filename

171433