Windstream said it was able to to transmit 800G over 730 kilometers in a live production network using Infinera's ICE6 technology.
The new DSPs are complemented by the coherent optical engines Nokia got when it bought silicon photonics pioneer Elenion Technologies.
Gilder, who joined the organization in November 2018, takes over the role of CEO from today, with former chief Grivner staying on with Colt until the end of June 2020.
The new Cal.net network, built with Connect America Fund (CAF II) money, is one of the first commercial deployments of CBRS technology in the US.
Telefónica has field tested IP/MPLS gear from Italian vendor Siae Microelettronica in Ecuador ahead of commercial 4G/5G backhaul deployment.