Photonics Is Ready for the AI Era—but Manufacturing Challenges Remain

Photonics and optical networking are approaching a major transition from laboratory research to widespread commercial applications. However, manufacturing costs, global supply chains, heat sensitivity and a shortage of specialized skills continue to challenge the industry.

Photonics Reaches a Turning Point

Peter O’Brien, head of research in photonics packaging and systems integration at Ireland’s Tyndall Institute, said academics and commercial companies have been working on photonics for many years. The technology, however, still faces multiple manufacturing challenges.

O’Brien believes photonics is now ready to make the leap from the lab to widespread applications.

“What’s happening now in optics and photonics is a kind of reset,” he says.

The shift is being accelerated by growing interest from the technology industry, including AI chip giant Nvidia, which is focusing efforts on photonics.

Why the Move to Photonics Is Difficult

The transition to photonics is not a simple exchange. It brings together different engineering traditions and supply chains, creating new challenges for companies that design, manufacture and deploy optical systems.

“We’ve gotten really good at driving the costs down: electrically, how we design, how we manufacture, how we test, how we deploy,” said Andrew Wheeler, senior vice president at Hewlett Packard Labs.

Even so, the industry is still looking for ways to reduce costs further.

Global Supply Chains Add to Manufacturing Costs

One challenge is that different parts of the photonics manufacturing process are distributed around the world. Final assembly, for example, takes place in specialized packaging houses that are concentrated in Taiwan.

This fragmented supply chain can make photonics manufacturing more complex and costly as the technology moves toward broader adoption.

Heat Creates Reliability Concerns

Engineering problems also remain. Optical network devices may generate much less heat, but other components inside data centers can still make the local environment extremely hot.

That creates a problem for optical components, which are highly sensitive to heat, Wheeler explains. Unless data center operators and equipment manufacturers maintain strict temperature limits, reliability concerns can arise.

New Skills Are Needed to Install Optical Networks

Optical networks can transmit data at close to the speed of light, but they are still installed and maintained at human speeds. Network designers, field support engineers and installation personnel all need to learn new installation and service skills.

Fiber construction requires particular care. Sharp explains, “There’s no wiggle room. There are nuances in how you construct them.”

Photonics Has Potential, but Deployment Will Take Work

Photonics is entering a new phase, supported by demand from AI and advanced data center infrastructure. Yet lowering costs, managing heat, coordinating global manufacturing and developing the necessary workforce will be essential for the technology to move successfully from the lab into widespread use.