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Analytical expressions for the output pulse broadening and eye-diagram power penalty of a chirped sampled Bragg grating (CSBG) dispersion compensator are derived. The result is applied to optimize the design of residue dispersion ratio in each channel and the total channel number of a fixed-length CSBG. The optimal residue dispersion ratio does not change when the channel number changes. The filter-induced pulse distortion will induce an additional eye-diagram power penalty and will give an upper limit for the channel number of 40-G+ systems. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 33: 171–174, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10267 [ABSTRACT FROM AUTHOR]

This study proposes and demonstrates, for the first time, a directly modulated NTSC AM-VSB erbium-doped fiber amplifier (EDFA) -repeated system in the 1550-nm region that uses a directly modulated transmitter, a push–pull preamplifier, a half-split band, wavelength-division-multiplexing (WDM) techniques, chirped fiber grating (CFG) as a fiber-dispersion compensation device. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 33: 214–218, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10279 [ABSTRACT FROM AUTHOR]