Title :
Dispersion of cascaded fiber gratings in WDM lightwave systems
Author :
Litchinitser, Natalia M. ; Eggleton, Benjamin J. ; Agrawal, Govind P.
Author_Institution :
Inst. of Opt., Rochester Univ., NY, USA
fDate :
8/1/1998 12:00:00 AM
Abstract :
Fiber gratings operating in the transmission mode can provide high dispersion at wavelengths close to the Bragg resonance. When multiple gratings are cascaded for wavelength division multiplexing (WDM) applications, the net dispersion between the stop bands of any two consecutive gratings is significantly modified. We discuss the dispersion characteristics of such cascaded fiber gratings and propose a dispersion compensator for simultaneous compensation of group-velocity dispersion (GVD) for multiple channels of a WDM lightwave system. We also discuss the impact of the dispersion possessed by cascaded gratings on grating based add-drop multiplexers
Keywords :
diffraction gratings; optical communication equipment; optical fibre communication; optical fibre dispersion; optical fibre theory; wavelength division multiplexing; Bragg resonance; WDM lightwave system; WDM lightwave systems; cascaded fiber grating dispersion; cascaded gratings; consecutive gratings; dispersion characteristics; dispersion compensator; grating based add-drop multiplexers; high dispersion; multiple gratings; net dispersion; stop bands; transmission mode; wavelength division multiplexing; Bragg gratings; Fiber gratings; Optical fiber communication; Optical fiber dispersion; Optical fiber filters; Resonance; Resonant frequency; WDM networks; Wavelength division multiplexing; Wavelength routing;
Journal_Title :
Lightwave Technology, Journal of
