Tower Semiconductor and Lightwave Logic announced a development agreement on March 11, 2026, to integrate Lightwave’s electro‑optic (EO) polymer modulators onto Tower’s PH18 silicon photonics platform. The partnership will allow Tower to offer a more complete photonic solution to its customers, while Lightwave gains access to a scalable foundry platform and a broader customer base.
The collaboration is strategically significant for Tower. By adding Lightwave’s modulators to its PH18 line, Tower can provide customers with compact, high‑speed modulators that support 400G per lane and beyond, a capability that is in high demand for data‑center interconnects and AI infrastructure. Tower’s CEO, Dr. Ed Priesler, said, "This development agreement strengthens the PH18 silicon photonics platform by expanding the modulator options available to our customers. By incorporating Lightwave Logic's modulator technology into our PDK, we enable customers to implement compact, high‑speed modulators on a scalable foundry platform."
For Lightwave, the partnership offers a critical path to commercialization. The company’s EO polymer technology, which can deliver 110 GHz+ bandwidths, will now be available on a widely used foundry process, reducing the barrier for customers to build differentiated photonic solutions. CEO Yves LeMaitre noted, "This collaboration allows us to bring the performance advantages of our electro‑optic polymer modulators into a widely accessible foundry PDK, lowering the barrier for customers to create differentiated photonic solutions and accelerate innovation."
Tower’s financial context underscores the strategic timing of the deal. In Q4 2025, Tower reported revenue of $440 million, up 14% year‑over‑year, and a net profit of $80 million. The company’s silicon photonics segment generated $421 million in 2025, representing 27% of total corporate revenue. Lightwave, still in a pre‑commercialization stage, posted full‑year 2025 revenue of approximately $237,000, primarily from licensing and NRE, with a net loss of $20.3 million and $69 million in cash, giving it a runway beyond December 2027.
The market reacted strongly to the announcement. Lightwave’s stock surged between 27% and 43% in pre‑market and after‑hours trading, reflecting investor optimism that the partnership will accelerate Lightwave’s path to revenue and broaden Tower’s silicon photonics portfolio. The partnership is seen as a win for both companies, positioning them to capture growth in the AI‑driven data‑center optical interconnect market.
In sum, the Tower–Lightwave partnership represents a significant step forward for silicon photonics. By combining Tower’s scalable foundry capabilities with Lightwave’s high‑performance EO polymer modulators, the alliance is poised to deliver high‑bandwidth, low‑power optical interconnects that meet the escalating demands of AI and data‑center workloads. The deal strengthens Tower’s PH18 platform, expands Lightwave’s commercial reach, and signals continued momentum in the silicon photonics market as it scales toward 400G, 800G, and 1.6 T interconnects.
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