Marvell Snaps Photonics Chipmaker Lumentum to Bolster AI Connectivity

The $115 billion deal aims to create a category leader in AI connectivity by co-designing network processors alongside lasers for optical transceivers.

The AI networking specialist Nvidia’s Jensen Huang calls the next trillion-dollar company has made a long-anticipated move into photonics by acquiring optical component maker Lumentum in an all-stock deal valued at $115 billion. The two Nvidia-backed companies help move vast amounts of data between AI chips.

While Marvell offers solutions for electrical and optical interconnects, network switching, and XPU attach, Lumentum brings expertise in high-performance lasers, optical transceivers, optical circuit switching (OCS), and specialized compound semiconductor manufacturing. The combined company, bringing silicon and optics closer, aims to become a category leader in AI connectivity.

Industry watchers, long calling for a much closer co-design of electrical and optical technologies, have been hinting at deals like this since the early 2020s. They call it a fascinating move and a giant bet that the next generation of AI data will mostly run on light, not copper.

“AI infrastructure is undergoing a fundamental architectural shift toward optical connectivity, creating an opportunity that comes along once in a generation,” said Matt Murphy, chairman and CEO of Marvell. “We intend to help shape the next era of AI connectivity,” he added.

What Marvell gets

It’s a hefty spend for Marvell. Axel Rudolph, chief technical analyst at IG Group, told Reuters this is an enormous bet, and investors are right to ask whether Marvell is paying too much and taking on too much at once. However, a closer look at this deal shows that Marvell is betting on steadily increasing demand for optical components, a critical but overlooked part of AI infrastructure.

In cloud computing, a major connectivity bottleneck is the hand‑off between silicon‑based NICs and laser‑driven transceivers. A tighter co-design across the electrical and optical signal chain could significantly reduce both latency and power draw. That’s what Lumentum CEO Michael Hurlston calls a “$550 billion” market opportunity.

As optical connectivity moves closer to compute, the co-design of electrical and optical technologies could encompass the full signal path: silicon, lasers, packaging, and power efficiency. Marvell’s DSPs, switches, and custom accelerators sit inside data centers’ optical transceivers. On the other hand, Lumentum supplies the lasers for these optical transceivers, which convert electrical signals into light and back again.

With the Lumentum deal, Marvell gains access to laser chips that generate the light used in optical connections. Lumentum also offers optical circuit switches that redirect light without electrical conversion. Furthermore, the San Jose, California-based company brings advanced compound semiconductor manufacturing and process technologies, including indium phosphide (InP).

The lasers are a critical building block in near-packaged optics (NPO) and co-packaged optics (CPO) designs. The Lumentum acquisition will give Marvell greater control over lasers, a crucial component in the optical supply chain for AI connectivity infrastructure. Lumentum’s laser technology also complements Marvell’s optical interconnect ambitions; Marvell has recently acquired Celestial AI to bolster its optical interconnect offerings.

The tie-up of two AI connectivity suppliers could also help create a more vertically integrated AI networking portfolio and allow Marvell to compete more aggressively with Broadcom. Moreover, greater influence over a constrained part of the AI networking value chain could provide Marvell with a broader foundation for competing with Broadcom.

Timing isn’t everything here

While the tie-up between Marvell and Lumentum makes business sense, both companies’ shares dropped after the announcement. It’s one of the semiconductor industry’s largest takeovers, and it came at a time when investors are growing skittish about AI economics. The announcement came after a week of bruising tech sell-off.

But the convergence of connectivity semiconductors and photonics has long been on the cards. A coordinated alignment of networking chips, lasers, and other optical components could significantly reduce integration risks and shorten design engineers’ time to deployment. And that justifies the strategic rationale behind Marvell’s acquisition of optical component maker Lumentum.

It’s also worth mentioning that Nvidia backs both companies and invested $2 billion each in Marvell and Lumentum earlier this year. Marvell CEO Murphy calls this deal a double down on supporting Nvidia. He also shot down concerns about Nvidia’s circular dealmaking. “I think having two of the key suppliers come together, that support that ecosystem, is going to be a big benefit for Nvidia,” he said.

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RELATED TOPICS: AI CONNECTIVITY, CO-PACKAGED OPTICS, INTEGRATED LASERS, MERGERS AND ACQUISITIONS, NETWORK SWITCHING IC, OPTICAL INTERCONNECTS, OPTICS & PHOTONICS, SEMICONDUCTORS

Majeed Ahmad, Editor in Chief of EDN and Planet Analog, has covered electronics design industry for longer than two decades. During this period, he has worked in various editorial positions, including assignments for EE Times Asia and Electronic Products. He holds a Masters’ degree in telecommunication engineering from Eindhoven University of Technology. Follow Majeed on LinkedIn