Theory on phase-matched second-harmonic generation in biaxial planar waveguides

Author

Fluck, Daniel

Author_Institution

Inst. for Quantum Electron., Fed. Inst. of Technol., Zurich, Switzerland

Volume

35

Issue

1

fYear

1999

fDate

1/1/1999 12:00:00 AM

Firstpage

53

Lastpage

59

Abstract

A theoretical study on the optimization of second harmonic generation (SHG) in a planar waveguide in a biaxial nonlinear material is presented. Numerically computed curves show the dependence of the SHG efficiency on the condition of lateral focusing in the planar waveguide, of double refraction and of phase matching. The calculations take full account of double refraction and diffraction in the paraxial approximation in the planar guide. It is shown that in the absence of double refraction and under optimum focusing conditions the generated second harmonic power increases in proportion to L^3/2, where L is the length of the planar waveguide

Keywords

approximation theory; birefringence; optical focusing; optical harmonic generation; optical planar waveguides; optical waveguide theory; optimisation; SHG efficiency; biaxial nonlinear material; biaxial planar waveguides; double refraction; generated second harmonic power; lateral focusing; numerically computed curves; optimization; optimum focusing conditions; paraxial approximation; phase matching; phase-matched second-harmonic generation; planar waveguide length; theoretical study; Birefringence; Frequency conversion; Nonlinear optics; Optical diffraction; Optical harmonic generation; Optical planar waveguides; Optical refraction; Optical waveguides; Planar waveguides; Waveguide theory;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.737619

Filename

737619