Reduced numerical models for misaligned beam propagation dynamics in nonlinear gradient waveguides

Author

Bychenkov, A.I. ; Derbov, V.L. ; Melnikov, L.A.

Author_Institution

Dept. of Phys., Saratov State Univ., Russia

fYear

1999

fDate

1999

Firstpage

173

Lastpage

176

Abstract

We briefly summarize our results based on the modified generalised moment method (MGMM) approach to misaligned beam dynamics in waveguides having parabolic profile of the linear refraction index and homogeneous Kerr nonlinearity. The limitations of the model are analysed. A more realistic model that allows direct application of MGMM and takes the leaky modes into account is proposed. Comparison with direct numerical solution of the paraxial wave equation in the symmetric case is carried out. General limitations of MGMM to transit phenomena that take place at the initial staged of propagation are discussed

Keywords

optical Kerr effect; optical losses; optical waveguide theory; optical waveguides; refractive index; direct numerical solution; homogeneous Kerr nonlinearity; leaky mod; linear refraction index; misaligned beam dynamics; misaligned beam propagation d; modified generalised moment method approach; nonlinear gradient waveguides; numerical models; parabolic profile; paraxial wave equation; symmetric case; transit phenomena; Integral equations; Laser beams; Nonlinear optics; Numerical models; Optical propagation; Optical refraction; Optical waveguide components; Optical waveguide theory; Optical waveguides; Partial differential equations;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks, 1999. International Conference on

Conference_Location

Kielce

Print_ISBN

0-7803-5637-3

Type

conf

DOI

10.1109/ICTON.1999.781877

Filename

781877