Strategies for Implementing ZR Technology in Meta's Backbone Network

Meta operates one of the largest global optical backbone network to support its business across social media, AI training, virtual/augmented reality, etc. The rapid traffic growth on the network leads to significant network design challenges in how to support this growth with limited space/power/cost budget. To address these challenges, we proposed a set of strategies to evolve our backbone network towards a point-to-point architecture, also implementing ZR optics to achieve high efficiency gains in fiber and site investments.