Bluebird Fiber Announces Tera-Core™ as Customer Demand Accelerates Beyond Single 400G Connections

What happened

Bluebird Fiber announced Tera-Core™, a new optical transport and IP backbone architecture designed to expand network capacity as hyperscalers, data center operators, carriers and large enterprise customers need greater bandwidth at scale. The stated cause is accelerating demand for high-capacity connectivity as large infrastructure customers move beyond single 400G connections to multiple 400G circuits along the same route. Tera-Core builds on existing 400G capabilities and establishes a path toward 800G wavelengths, higher bandwidth IP services, and future multi-terabit capacity; it combines colorless, gridless DWDM technology with a terabit-capable IP/MPLS core and includes a roadmap for expanding from C-band to include L-band spectrum to increase capacity deployable over existing fiber. Bluebird Fiber currently offers 400G-capable routes, with additional routes coming online by the end of 2026 and throughout 2027. The architecture is a plan/roadmap; the announcement itself does not prove implementation or completion.

Impact and signal

Affected components and suppliers

Source and time

Source: EE Journal · 11/3/2026 · View original source