Title :
Wave propagation through nonuniform gratings with slowly varying parameters
Author :
De Sterke, C. Martijn
Author_Institution :
Sch. of Phys., Sydney Univ., NSW, Australia
fDate :
11/1/1999 12:00:00 AM
Abstract :
Light propagation through nonuniform gratings with slowly varying parameters is studied using a Schrodinger-like equation. This treatment is intuitively pleasing when applied to uniform gratings as the results are then expressed in terms of the dispersion of the grating. It is shown here that when applied to nonuniform gratings, this method leads to an additional and potentially significant contribution to the dispersion that is not included in naive treatments. It is found that the magnitude of this dispersion can be larger than the total dispersion of the structure. An approximate expression for the reflectivity is also given
Keywords :
Bragg gratings; Schrodinger equation; diffraction gratings; light propagation; optical dispersion; reflectivity; Schrodinger-like equation; dispersion; light propagation; nonuniform gratings; reflectivity; slowly varying parameters; wave propagation; Bragg gratings; Equations; Fiber gratings; Frequency; Optical fiber dispersion; Optical fiber filters; Optical fibers; Optical propagation; Optical pulse shaping; Reflectivity;
Journal_Title :
Lightwave Technology, Journal of
