Title :
Bragg gratings: impact of apodization lobes and design of a dispersionless optical filter
Author :
Minzioni, Paolo ; Tormen, Maurizio
Author_Institution :
CNISM Univ. of Pavia, Italy
Abstract :
Several Bragg-grating (BG) filters employing an asymmetrical and multilobe apodization curve, obtained by inverse-problem solving techniques, have been described in literature. To our knowledge, the roles played by the asymmetry of the apodization function and by each apodization lobe have never been determined. In this paper, the role of the lobes and asymmetry is mathematically analyzed, and the validity of the given description is numerically demonstrated. The physical insight gained allows to optimize the filters obtained as solution of the inverse problem.
Keywords :
Bragg gratings; inverse problems; optical design techniques; optical filters; Bragg gratings; apodization; inverse-problem solving; optical filter design; Band pass filters; Bragg gratings; Inverse problems; Optical design; Optical fiber communication; Optical filters; Optical resonators; Resonator filters; Transfer functions; Wavelength division multiplexing; Gratings; optical filters; optical resonators;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2005.859859
