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Opt Express. 2013 Aug 26;21(17):19498-509. doi: 10.1364/OE.21.019498.

Wavelength tunable coherent burst-mode receiver design under transient frequency offset.

Abstract

Wavelength tunable optical coherent burst-mode receivers (BMR) can offer flexibility and sub-wavelength granularity for dynamic WDM networks. A new BMR design with dispersion equalizer plus frequency offset estimator is proposed for simultaneous dispersion compensation and frequency offset estimation. Its good performance is verified by simulations. A training sequence as short as 4 K symbols, corresponding to an initialization time of 160 ns, is found to be enough to support 200 km transmission distance plus over ± 5 GHz frequency offset. The new BMR design can also work under the case when transient frequency offset from wavelength tuning exists in the system.

PMID:
24105497

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