Hybrid mode phase matching and effective nonlinear coefficient for second harmonic generation in biaxial waveguides

Author

Maldonado, Theresa A. ; Ciumac, Mariana

Author_Institution

Dept. of Electr. Eng., Texas Univ., Arlington, TX, USA

Volume

15

Issue

9

fYear

1997

fDate

9/1/1997 12:00:00 AM

Firstpage

1747

Lastpage

1755

Abstract

Phase matching between fundamental and second harmonic hybrid guided modes in nonlinear biaxial planar waveguides is determined for the first time based on principal axes orientations of the film, substrate, and cover. We have derived an expression for the effective nonlinear coefficient D_eff of hybrid modes in a biaxial waveguide and have calculated this coefficient numerically along the effective index phase match loci for these modes supported by a POM waveguide surrounded by isotropic media. The optimum phase matching orientations are determined for a fixed waveguide thickness. Dispersion of the principal indexes is considered

Keywords

birefringence; light propagation; nonlinear optics; optical dispersion; optical harmonic generation; optical planar waveguides; optical waveguide theory; 3-methyl-4-nitropyridine-l-oxide; POM waveguide; biaxial waveguides; cover; effective index phase match loci; effective nonlinear coefficient; film; fixed waveguide thickness; fundamental modes; hybrid mode phase matching; isotropic media; nonlinear biaxial planar waveguides; optimum phase matching orientations; principal axes orientations; principal index dispersion; second harmonic generation; second harmonic hybrid guided modes; substrate; Frequency conversion; Nonlinear optics; Optical films; Optical frequency conversion; Optical harmonic generation; Optical mixing; Optical waveguide theory; Optical waveguides; Planar waveguides; Substrates;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.622903

Filename

622903