400G Optical Client Interfaces In The Field

The key trend in transport is the adoption of 400G links, especially for service providers upgrading their Ethernet backbones or data centers beefing up their interconnections with wavelength services.

However, there are important differences in the way 400G is achieved compared to every line rate that came before it. Use this poster as a reference to understand those technological differences. 

Topics covered include:

  • Anatomy of a QSFP-DD transceiver
  • Benefits and challenges of PAM4 modulation
  • Block diagrams of key 400G optics
Poster: 400G Optical Client Interfaces In The Field
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