Title :
Propagation of Gaussian beams in dielectric waveguides
Author_Institution :
Dept. of Phys., Northern Jiaotong Univ., Beijing, China
fDate :
9/1/1992 12:00:00 AM
Abstract :
The propagation of Gaussian beams in both a homogeneous medium and a lenslike medium is treated. The correct Helmholz equation derived by the author is used to obtain the analytic solutions, taking into account the diffraction effect. Based on this, the beamwidth and the form of the wavefront are considered. The beamwidth will increase monotonically in the homogeneous medium and will be sinusoidal in the lenslike medium; that is, in the lenslike medium, the width will alternately increase and decrease
Keywords :
light diffraction; optical waveguide theory; Gaussian beams; Helmholz equation; analytic solutions; beamwidth; dielectric waveguides; diffraction effect; homogeneous medium; lenslike medium; optical beam; propagation; wavefront; Boundary conditions; Calculus; Dielectric constant; Diffraction; Equations; Erbium; Optical beams; Optical waveguides; Physics; Polynomials;
Journal_Title :
Lightwave Technology, Journal of
