How much does co-packaged low-noise photonics cost

Co-packaged low-noise photonics is currently a high-cost technology, with fabrication and packaging expenses ranging from several million to tens of millions of dollars for production facilities, while per-unit costs vary widely depending on scale and integration complexity.

Manufacturing and Capital Costs

Co-packaged photonics (CPO) integrates photonic integrated circuits (PICs) directly with ASICs or electronic integrated circuits (EICs), often using silicon interposers or 3D stacking. This approach dramatically increases bandwidth and energy efficiency but also raises manufacturing complexity due to precise alignment, thermal management, and high-density interconnects . Building a PIC prototyping facility can cost around $30 million, with annual operating expenses of several million dollars. Advanced commercial fabs for high-volume production may cost 10 times more, and the most sophisticated silicon photonics fabs can require up to 100 times the prototyping cost, reflecting the need for precision lithography, vacuum-based tools, and specialized processes .

Per-Unit Cost Considerations

While exact per-unit pricing is not publicly disclosed, several factors influence costs:

• Integration complexity: Co-packaging the optical engine with ASICs increases assembly and testing costs.
• Volume production: Hyperscalers like Google, Amazon, and Microsoft are primary buyers, and large-scale orders can reduce per-unit costs through economies of scale .
• Power and performance optimization: Low-noise designs and high-speed links (800G–1.6T per port) require precise fabrication, which adds to cost .
• Back-end packaging: Testing, assembly, and thermal management are significant contributors to overall cost, often exceeding front-end fabrication expenses . Industry analysts suggest that initial deployments of CPO modules for AI data centers or HPC networks are likely to be expensive, potentially several thousand dollars per module, though costs are expected to decrease as production scales and manufacturing processes mature .

Outlook

With high-volume production ramping up (e.g., STMicro's PIC100 platform on 300mm wafers), costs are expected to decline over the next few years, especially as hyperscalers adopt co-packaged optics for AI and high-performance computing fabrics . However, for smaller-scale or experimental deployments, the capital and per-unit costs remain substantial, reflecting the cutting-edge nature of the technology. In summary, co-packaged low-noise photonics is a high-investment technology, with facility costs in the tens of millions and per-unit costs in the thousands of dollars, heavily influenced by integration complexity, production scale, and performance requirements .