Vocus quadruples Adelaide-Perth capacity to support surging AI and cloud workloads
Vocus has significantly upgraded its Adelaide-Perth 2 (AP2) optical route, quadrupling capacity by leveraging Ciena WaveLogic 6 Extreme technology. This enhancement strengthens Australia's east-west connectivity, enabling 400G services to support the growing demands of AI and cloud workloads. The upgrade uses existing fiber infrastructure to maximize capacity and reduce latency for data movement between cities and data centers.
Key Takeaways
- Upgraded AP2 route quadruples existing capacity on the 2,700 km corridor between Adelaide and Perth
- Uses Ciena WaveLogic 6 Extreme (WL6e) coherent optics to transmit across C and L bands without laying new fiber
- Enables native 400Gbit/s services, augmenting previous 100Gbit/s offerings for hyperscalers and enterprises
- Forms a dual-system optical platform alongside the AP1 route upgraded in 2025
- Integrates with Vocus’ broader infrastructure projects, including Google-backed Pacific Connect and Australia Connect
Why It Matters
This upgrade marks a critical shift toward supporting low-latency, high-bandwidth terrestrial paths as AI workloads move from centralized city hubs to more distributed data centers. By doubling usable spectrum across existing fiber, Vocus avoids the multi-year lead times of new subsea or terrestrial builds while meeting the immediate 400G connectivity needs of global hyperscalers. For the streaming and cloud ecosystem, this provides a more stable, land-based alternative to subsea routes with consistent latency. Watch for further 400G/800G expansion benchmarks as Vocus integrates these routes with Google’s subsea Pacific Connect ring in 2026.
Additional Context
The timing of the Vocus upgrade reflects a broader surge in Australian digital infrastructure demand. Per Gartner projections from June 2026, Australia’s data center power demand is forecast to rise to 1.5 gigawatts this year, a 38.3% increase from 2025. This growth is primarily fueled by AI-optimized servers, which Gartner estimates will account for 35.7% of all Australian data center power consumption in 2026 before overtaking conventional servers in 2027. Consequently, terrestrial fiber backbones are under pressure to scale capacity to match this localized compute density. Vocus’ selection of Ciena’s WaveLogic 6 Extreme (WL6e) aligns with a global deployment trend aimed at reducing the cost and energy footprint of high-capacity transport. Per Ciena reporting in March 2026, the WL6e transceiver utilizes 3-nanometer silicon to deliver a 50% reduction in power per bit compared to previous generations. This technology has seen rapid international adoption; for instance, India’s Vodafone Idea recently deployed WL6e to achieve 1.6 Tb/s line rates on single optical channels to support its data center interconnect mesh. Furthermore, the AP2 upgrade is a foundational component of Vocus’ international connectivity strategy. Per AmCham and media reporting from 2024 and 2025, Vocus is a key partner in Google’s Pacific Connect initiative, which includes the Honomoana and Tabua subsea cables. These systems, expected to be fully operational in 2026, will link Australia and New Zealand to the U.S., Fiji, and French Polynesia. By strengthening the terrestrial link between Perth and Adelaide, Vocus ensures that international traffic arriving via the Australia-Singapore Cable and new trans-Pacific routes can be efficiently distributed across the continent without hitting a domestic capacity bottleneck.
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