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Meta Unveils Petabit-Capacity Petal Cable

Read original on Meta Newsroom
#subsea-cable#networking#bandwidth

Meta’s Petal cable targets a major bandwidth expansion for global AI infrastructure.

30-Second TL;DR

What Changed

Petal is designed for petabit capacity across oceans.

Why It Matters

Higher-capacity subsea connectivity can support growing AI training, inference, and data-transfer demand between regions. It may improve resilience and bandwidth for Meta’s global services and AI infrastructure.

What To Do Next

Map your cross-Region training and inference traffic to identify where future subsea capacity could reduce transfer bottlenecks.

Who should care:Enterprise & Security Teams

Key Points

  • •Petal is designed for petabit capacity across oceans.
  • •Meta claims twice the capacity of current leading transoceanic cables.
  • •The cable expands infrastructure for globally distributed data traffic.
Key numbers1,000 Tbps500 Tbps$140 billion

Deep Insight

Background and context from public sources — not the original article. 8 sources cited.

Enhanced Key Takeaways

  • •Petal spans roughly 7,000 kilometers across the Atlantic Ocean, creating a direct subsea link between the United States and France.
  • •The system utilizes breakthrough 2-core multi-core fiber (MCF) produced by Sumitomo Electric, packaging the capacity equivalent of 48 fiber pairs into a 24-pair physical cable design.
  • •Turnkey supply and construction will be led by NEC Corporation, with French telecommunications operator Orange managing the European landing station.
  • •The 1 petabit per second (1,000 Tbps) design doubles the capacity of existing cutting-edge cables like Anjana (~500 Tbps) without a proportional increase in power consumption.
  • •Petal joins Meta's portfolio of more than 20 subsea cables to support surging cross-Atlantic AI synchronization workloads amid projected 2026 capital expenditures exceeding $140 billion.

Competitor Analysis

Petal
Primary Backer
Meta
Total Capacity
1,000 Tbps (1 Pbps)
Distance & Route
~7,000 km (US to France)
Fiber Technology
24-pair (2-core MCF, 48 equivalent pairs)
Anjana
Primary Backer
Meta
Total Capacity
~500 Tbps
Distance & Route
~7,121 km (US to Spain)
Fiber Technology
24 fiber pairs (Standard single-mode)
Dunant
Primary Backer
Google
Total Capacity
~250 Tbps
Distance & Route
~6,400 km (US to France)
Fiber Technology
12 fiber pairs (Space-division multiplexing)
Amitié
Primary Backer
Consortium (Meta, Microsoft, Orange)
Total Capacity
~400 Tbps
Distance & Route
~6,800 km (US to UK/France)
Fiber Technology
16 fiber pairs (Space-division multiplexing)

Technical Deep Dive

  • Multi-Core Fiber (MCF) Architecture: Implements 2-core fiber technology across a transoceanic distance, packing 48 logical fiber pairs within a 24-fiber-pair physical form factor.
  • Aggregate Capacity: Engineered to deliver 1 petabit per second (Pbps) (1,000 Tbps) total throughput.
  • Route & Span: Spans approximately 7,000 kilometers (over 4,300 miles) across the Atlantic Ocean connecting the US and France.
  • Power Efficiency: Doubles transmission throughput without a proportional increase in physical cable footprint or electrical power consumption requirements.
  • Key Industrial Partners: NEC Corporation serves as the turnkey system supplier, Sumitomo Electric Industries manufactures the specialized multi-core fiber, and Orange operates the landing infrastructure in France.

Future ImplicationsAI analysis grounded in cited sources

Transoceanic subsea networks will broadly shift toward multi-core fiber (MCF) designs.
Petal proves the viability of doubling data throughput without scaling up the physical diameter or power constraints of deep-sea repeaters.
Intercontinental AI model training will increasingly depend on proprietary hyperscaler subsea routes.
Massive bandwidth scaling is required to support cross-Atlantic distributed model training and data synchronization without relying on constrained public transit networks.

Timeline

2020-05
Meta and consortium partners announce the 2Africa subsea cable project
2021-03
Meta unveils the Echo and Bifrost transpacific cable systems
2023-07
Amitié subsea cable system connecting the US, UK, and France enters service
2026-09
Meta officially announces Petal, the first transoceanic petabit-scale subsea cable
Read original article on Meta Newsroom

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