Cisco to buy semiconductor company Luxtera, which develops silicon photonics technology that speeds up data transfer, for $660M
- Luxtera's advanced chips will help Cisco meet business client demand for faster and high-performing network service, the company said.
Context & Ripple Effects
The Luxtera deal extends a silicon-buying streak Cisco had been running since it picked up Israeli chip startup Leaba for $380M two years earlier — a shift from assembling boxes around merchant parts toward owning the chips inside them. Luxtera brings silicon photonics, the technology that moves data over fiber at higher speeds, aimed squarely at what Cisco calls business-client demand for faster networks.
The move reads clearly in hindsight: within seven months Cisco was back with an offer for optical interconnect maker Acacia Communications at $2.6B, and by 2025 its own Silicon One P200 chip and 8223 routers were competing on long-haul optics against Broadcom. Luxtera was the first photonics piece of that stack.
First-order effects
- Cisco gains in-house silicon photonics design capability for $660M, letting it bake faster fiber-optic data transfer directly into its switching and routing products for enterprise customers.
- Luxtera's investors and team exit via acquisition, and the startup stops being an independent supplier of photonics chips to the broader market.
Second-order effects
- Cisco's appetite for optical interconnect did not stop at Luxtera: the follow-on Acacia bid at $70/share showed Cisco willing to pay a 46% premium to lock up the category, pressuring other network-equipment makers who relied on merchant optics suppliers.
- When Cisco re-struck the stalled Acacia deal in 2021 at roughly $4.5B — a 64% bump over the original price — it demonstrated how scarce independent optical-interconnect assets had become once the big buyers started consolidating them.
Third-order effects
- If the pattern holds, networking vendors keep absorbing specialist silicon firms until photonics and custom chips become table stakes owned in-house rather than procured — the endpoint visible in Cisco's 2025 Silicon One P200 launch against Broadcom.
- Specialist absorption also concentrates risk: each independent optics designer Cisco buys narrows the merchant supply base its competitors can source from, pushing rivals toward their own acquisitions or captive designs.
The trend: Network equipment makers are vertically integrating into proprietary silicon and photonics, converting merchant-chip buyers into chip owners and competitors.