Demand for GPUs and other computing hardware has risen sharply in recent years as demand for AI computing continues to grow. In particular, the reliance on high-speed data transfer for AI training in data centres has driven an equally dramatic increase in the demand for AI server clusters and 800G optical module transceivers. As data centre infrastructure continues to expand, the use of optical modules has grown exponentially. At present, 200G and 400G transceivers have been deployed on a large scale, and 800G optical transceivers have begun to enter the mass production and introduction stage.
Why Do We Need 800G Optical Transceiver?
With the dramatic increase in global demand for data consumption and the associated technological advancements such as cloud computing, video streaming, AI and the global deployment of 5G networks, there is a growing need for high-speed data transmission in the marketplace. 800G optical transceivers have been created to provide the necessary bandwidth and speeds to efficiently handle the increased traffic and datasets, ensuring that technological development is not limited by data transmission rates. Market research firms forecast the 800G optical module market to grow at a CAGR of more than 25% over the next few years, reaching a market size of more than $5 billion by 2025.In addition, 800G optical transceivers meet industry requirements for scalability, flexibility and future readiness by improving energy and cost efficiency for data transmission. They allow networks to achieve higher bandwidth densities with fewer devices and connections while reducing power consumption per bit, helping data centre and telecom providers control operating costs while expanding network capacity and safeguarding the long-term value of investments.
Updating Data Centre Topology Architecture
Data centre network architectures are constantly evolving as data centre computing scales and east-west traffic continues to expand. In a traditional three-tier topology, data exchange between servers must go through access, aggregation, and core switches, which puts tremendous load pressure on the aggregation and core switches.
When further expanding the size of the server cluster with a conventional three-layer topology, the cost of the devices increases dramatically, as high-performance devices have to be deployed in the core and aggregation layers.
Instead, a two-layer Spine-Leaf topology is used to flatten the traditional three-layer architecture into two layers. In this setup, Leaf switches are similar to access layer switches in a traditional three-tier architecture, connecting directly to the servers. Spine switches, on the other hand, are equivalent to core layer switches and are directly connected to leaf switches, and each spine switch is connected to all leaf switches.
QDD-SR8-800G | OSFP-SR8-800G | OSFP-2FR4-800G | |
Center Wavelength | 850nm | 850nm | 1271nm, 1291nm, 1311nm and 1331nm |
Connector | MTP/MPO-16 | Dual MPO-12/APC | Dual LC Duplex |
Cable Distance (Max.) | 30m@OM3/50m@OM4 | 30m@OM3 50m@OM4 | 2km |
Modulation | 8×106.25G PAM4 | 8×106.25G PAM4 | 8×106.25G PAM4 |
Transmitter Type | VCSEL | VCSEL | EML |
Packaging Technology | COB (Chip on Board) Packaging | COB (Chip on Board) Packaging | COB (Chip on Board) Packaging |
Chip | Broadcom 7nm DSP Chip | Broadcom 7nm DSP | Broadcom 7nm DSP Chip |
Power Consumption | ≤13W | ≤15W | ≤16.5W |
Application | Ethernet Data Center | InfiniBand 800G to 800G 800G to 2x400G Breakout | Ethernet Data Center 800G to 2x400G |
Summary
With the certainty of GPU orders driving demand, the mass shipment phase for 800G optical transceivers is set to commence in the latter half of this year. Serving as a vital link for AI computing power, the 800G optical transceivers are poised to witness accelerated market growth and deployment rates fueled by the expanding scale of data centres and the continuous rise in demand for AI training.
Related Articles:
Unveiling the Future: The Evolution of 800G OSFP Optical Transceivers
Unlocking Next-Gen Connectivity with the 800G OSFP Transceiver