Title :
Randomly sampled apodization in Bragg gratings
Author :
Tormen, Maurizio ; Ghidini, Silvia ; Crespi, Paola ; Chacon, Diego ; Nottola, Alessandro ; Sardo, Stefano ; Crippa, Davide ; Di Muri, Melissa ; Zuliani, Giorgio ; Giacometti, Fabrizio
Author_Institution :
Pirelli Labs S.p.A, Milan, Italy
fDate :
4/1/2006 12:00:00 AM
Abstract :
In the context of optical filters for wavelength division multiplexing systems, the randomly sampled apodization is introduced to apodize the spectral response of a Bragg grating (BG). By conveniently sampling the refractive-index modulation along the propagation direction, it is possible to obtain a flat-band behavior around the filter central wavelength and high-sidelobe suppression. The proposed approach can be advantageous when BGs are obtained in optical waveguides through physical corrugation.
Keywords :
Bragg gratings; optical communication equipment; optical filters; optical waveguides; refractive index; wavelength division multiplexing; Bragg gratings; optical filters; optical waveguides; randomly sampled apodization; refractive-index modulation; wavelength division multiplexing; Bragg gratings; Integrated optics; Optical control; Optical filters; Optical modulation; Optical refraction; Optical variables control; Optical waveguides; Refractive index; Wavelength division multiplexing; Apodization; Bragg gratings (BGs); optical filters; wavelength division multiplexing (WDM);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2006.871058
