With the rapid pace of technology evolution, it is easy to allow complexity to overcome simplicity. Service providers are optimizing their metropolitan optical networks as well as extending this bandwidth capacity all the way to their business enterprise customers. However, in doing so, many have also increased the complexity associated with delivering and managing this bandwidth. This talk discusses how recent technologies help service providers design, deploy, and manage a state-of-the-art optical metropolitan network that avoids complexity and optimizes the flow of bandwidth. This talk describes how the needs of the service provider (to deploy an effective, flexible, scalable, and affordable multi-service network) and their customers (to receive quickly provisioned, reliable, and affordable services) are what drive the choices of technology used. A combination of these technologies, including wave-division-multiplexing (WDM), bit-error-rate performance monitoring, and management software, is necessary to promote harmony. This talk will familiarize the audience with how key technologies translate to real-life benefits for the delivery of high-bandwidth optical services.
We demonstrate near-error-free output-port contention resolution in a WDM switching node based on all-optical wavelength shifting. Contention between incoming 1-Gbit/s data packets is resolved in real-time by comparing subcarrier-multiplexed control headers on 2 input ports and then all-optically wavelength-shifting one input signal to a free wavelength if contention occurs. Additionally, the 50 Mbit/s subcarrier header itself is replaced and updated with new routing information.
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