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We present a platform for the optical interconnection of traffic nodes where the sense of transmission is exploited as an additional degree of flexibility. Implementation of the optical arrangement is shown. The requirements about the negotiation of the available resources, such as fibers and wavelengths, are discussed. We evaluate the implications of flexible-sense transmission in terms of cost,...
We propose a scheme for efficient power control in 100G optical transponders through reduction of the length of electronic chromatic dispersion compensation filters, according to the network traffic fluctuations. Transmission rate reduction is achieved by symbol retransmission, while maintaining system parameters unchanged, to avoid increased complexity. Power savings offered by the scheme are estimated.
An efficient defragmentation technique based on optical channel re-tuning is proposed for flexible optical networks. Effective defragmentation with no traffic disruption is achieved without additional spare transponders or re-equalization operations.
An efficient defragmentation technique based on optical channel re-tuning is proposed for flexible optical networks. Effective defragmentation with no traffic disruption is achieved without additional spare transponders or re-equalization operations.
An in-service field trial with coherently detected DP-QPSK at 112 Gb/s was performed over a Telefónica live link of 848 km, testing long term stability and determining noise margin and optimum launch power of the format.
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