Forward multibeam mixing in diffusion-driven photorefractive media

Author

Gilbreath, G. Charmaine

Author_Institution

US Naval Res. Lab., Washington, DC, USA

Volume

9

Issue

1

fYear

1991

fDate

1/1/1991 12:00:00 AM

Firstpage

105

Lastpage

112

Abstract

Multibeam mixing in diffusion-driven media is presented as a diagnostic for the study of nonplane wave photorefractive interactions based on the premise that a complex wavefront can be analyzed as the superposition of many plane waves. Coupled-nonlinear differential equations which describe the interactions of the intensities as they couple through the medium are derived. These equations were numerically solved using a Runge-Kutta algorithm to gain insight as to how the beams interact in the medium. Three beam interactions was experimentally studied in BaTiO₃ at 514.5 nm to verify the analysis. Results indicate that phase aberrations affect intensity distributions in the enhanced beam

Keywords

barium compounds; multiwave mixing; photorefractive materials; 514.5 nm; BaTiO₃; Runge-Kutta algorithm; complex wavefront; coupled nonlinear differential equations; diffusion-driven photorefractive media; forward multibeam mixing; intensity distributions; nonplane wave photorefractive interactions; phase aberrations; superposition; three beam interactions; Equations; Fiber nonlinear optics; Laser beams; Laser excitation; Nonlinear optics; Optical beams; Optical coupling; Optical crosstalk; Optical mixing; Photorefractive effect;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.64929

Filename

64929