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 carrier claims best-in-market latencies on critical European PrizmNet routes, using Arista 7130 ultra-low-latency switches.
Acacia's 400G modules feature interoperability support for 400ZR, OpenZR+, Open ROADM and CableLabs specs.
Infinera and Corning have enabled an 800G single wavelength over 800km using Infinera's ICE6 technology and Corning's TXF fiber.
Ciena reported fiscal first-quarter revenues of $832.9 million, up by 7% year-on-year.
Cisco's optical interconnect whiz kids won't be at OFC 2020.
Optical equipment vendor posts fourth-quarter revenues of $384.6 million and full-year revenues of almost $1.3 billion.
Ciena reported a 7.6% rise in fiscal fourth-quarter revenues to $968 million and a 15.4% hike in fiscal full-year sales to $3.57 billion.