The fundamental properties critical for the application of fiber Bragg gratings to adding or dropping channels in 50 GHz dense WDM systems are discussed. A figure of merit based on the grating transmission and reflection bandwidths and spectral shifts over time and temperature is proposed. The flatness of the grating in transmission is shown to increase by appropriate design of the host fiber. Additionally, the chromatic dispersion of the grating in the reflected band is briefly reviewed.
© 1999 Optical Society of AmericaPDF Article
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