Dispersion of cascaded fiber gratings in WDM lightwave systems

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 signifi...

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Bibliographic Details
Published in:Journal of lightwave technology 1998-08, Vol.16 (8), p.1523-1529
Main Authors: Litchinitser, N.M., Eggleton, B.J., Agrawal, G.P.
Format: Article
Language:English
Subjects:
Applied sciences
Bragg gratings
Circuit properties
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Fiber gratings
Integrated optics. Optical fibers and wave guides
Optical and optoelectronic circuits
Optical fiber communication
Optical fiber dispersion
Optical fiber filters
Resonance
Resonant frequency
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
Wavelength division multiplexing
Wavelength routing
WDM networks
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Summary: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.
ISSN:0733-8724
1558-2213
DOI:10.1109/50.704620