Optical Meshed Networks: From Concept to Deployment

Falling Boundaries from Metro to ULH Optical Transport Equipment

“…Access to additional directions in a PXC can be performed in-service without service interruption, independently of the channel load. This connectivity enables flexible all-optical ring/meshed network topology [14] and efficient dynamic wavelength routing [15]. Finally, "colorless" (or tunable) ROADMs have been announced for future release in both LH/ULH and metro transport platforms whereby any wavelength can be dropped on any output port.…”

“…Today, the availability of multi-degree wavelength-selective switches (WSS) has enabled the efficient migration to a fully-meshed network that supports scalable multi-degree connectivity through efficient wavelength routing [14]. The future trend, already announced on some metro platforms, is toward the support of fully-meshed architecture with automatic wavelength reallocation enabling dynamic bandwidth provisioning.…”

Transparent optical networks become mature - Emerging research areas

“…Transparent optical networks have become an integral part of backbone networks [1][2] with extending worldwide deployment [3][4]. Meanwhile, backbones are facing novel challenges and opportunities.…”