Atkinson, D., Loh, W.H., O'Reilly, J.J. and Laming, R.I.
Numerical study of 10cm chirped fibre grating pairs for dispersion compensation at 10 Gbit/s over 600km of non-dispersion shifted fiber
IEEE Photonics Technology Letters, 8, (8), . (doi:10.1109/68.508746).
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We examine illustrative cases for fiber grating-based dispersion compensation over 600 km of non-dispersion shifted fiber at 10 Gbit/s and show that a pair of 10 cm, 95% reflectivity gratings require apodisation to avoid pattern dependency. Approximately 70% apodisation provides the best balance between restricted bandwidth and inexact dispersion compensation. Greater tolerance to apodisation, bandwidth, and system length is achieved using gratings with ~50% reflectivity. The effects of fiber non-linearity are reduced by locating gratings at 200 and 400 km, this configuration also improves the tolerance to total system length and launched power.
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