May 12 2025
Overview of 400G DR4, FR4, LR4, and SR8 QSFP-DD Optical Transceivers
Future trends:
Higher speeds: Evolution to 1.6T with CPO (Co-Packaged Optics).
Cost reduction: Prices expected to drop 15–20% annually with economies of scale.
Standardization: IEEE/OSFP MSA ensuring multi-vendor interoperability.