400Gb/s Real-time Trial Using Rate-adaptive Transponders for Next Generation Flexible-grid Networks

Abstract

We experimentally demonstrate real time error free transmission over more than 65 hours using a 400G rate adaptive flexible-grid transponder in a metro regional Telecom Italia multivendor environment. Transmission over a G.652 field link and G.655 E-LEAF path with legacy DWDM equipment and co-propagating commercial coherent 40G and 100G channels was successfully achieved with a spectral efficiency of 5.33 b/s/Hz.