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Transmission of directly modulated 2.5-Gb/s signals over 250-km of nondispersion-shifted fiber by using a spectral filtering method
1996 / IEEE
This item was taken from the IEEE Periodical ' Transmission of directly modulated 2.5-Gb/s signals over 250-km of nondispersion-shifted fiber by using a spectral filtering method ' We demonstrate 250-km nondispersion-shifted fiber transmission of directly modulated 2.5-Gb/s signals. The chirping-induced power penalty is reduced by using a spectral filter whose transmission peak is tuned to ""mark"" wavelength of the modulated laser output. A well-known intensity modulation with a sufficiently high extinction ratio is used to suppress the intersymbol interference induced by nonuniform frequency modulation response of semiconductor lasers. The observed results are explained theoretically by using eye closure penalty.
Optical Fibre Communication
Optical Fibre Dispersion
Directly Modulated Gb/s Signal Transmission
Spectral Filtering Method
Chirping-induced Power Penalty
Modulated Laser Output
High Extinction Ratio
Intersymbol Interference Suppression
Nonuniform Frequency Modulation Response
Eye Closure Penalty
Photonics And Electrooptics
Engineered Materials, Dielectrics And Plasmas