Title :
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
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;
Conference_Titel :
Transparent Optical Networks, 1999. International Conference on
Conference_Location :
Kielce
Print_ISBN :
0-7803-5637-3
DOI :
10.1109/ICTON.1999.781877
