HyperLight just raised $80 million to push its light-based computer chips into mass production, and the round shows how much weight the chip industry now places on a problem most people never think about: how data actually moves between machines.
The Cambridge, Massachusetts company builds chips that send information using pulses of light instead of electricity. Mian Zhang, the company's CEO and co-founder, led HyperLight through this Series C round, which was led by MediaTek. The goal now is straightforward. Take a technology that has worked in small batches and produce it at the volume that data centers actually need.
Inside a modern AI data center, chips talk to each other constantly, and they need to send enormous amounts of data back and forth in fractions of a second. Copper wiring, the kind used in most electronics for decades, struggles with this. As data speeds climb toward 3.2 terabits per second and higher, electrical signals weaken the farther they travel. Engineers can compensate, but only by adding equipment that burns more power. That tradeoff is becoming harder to accept as AI systems scale up.
The solution gaining ground is called optical interconnects. Instead of pushing electricity through a wire, these systems send data as light. Light does not lose strength the way electrical signals do, so it can carry more data over longer distances without the same energy cost. This is the exact problem HyperLight's chips are built to solve, and it explains why a funding round for a relatively unknown chipmaker drew this much investor interest.
The $80 million came from a notably broad group. MediaTek led the round. UMC Capital, Jabil, Foxconn, EDBI, CDIB-TEN Capital, and Qatar Investment Authority all participated, along with unnamed strategic investors from established chip and networking firms. Summit Partners, The Engine, Foothill Ventures, and Xora Innovation, all previous backers, stayed in for this round as well.
HyperLight's chips are built on a material called thin-film lithium niobate, or TFLN. Lithium niobate itself is not new. Telecom companies have used it for years because it converts electrical signals into light with very little loss along the way. What is new is making it thin enough, and precise enough, to work at chip scale.
The timing matters here. According to Precedence Research, the global market for co-packaged optics, a method of building these light-based components directly into chip packaging rather than as separate add-on parts, was worth $95.04 million in 2025. That market is projected to grow at roughly 30.66 percent a year through 2034. Numbers like that help explain why investors across so many different parts of the supply chip wanted in on this round, from chip designers to foundries to the companies that assemble finished electronics.
Brian Hsu, Managing Director of the MediaTek Innovation Fund, connected the investment directly to where he sees the technology heading.
"Next-generation AI infrastructure requires optical connectivity that enables 3.2T and beyond. TFLN's combination of bandwidth and efficiency makes it a compelling technology for high-speed interconnects, and HyperLight is well positioned to support this transition." — Brian Hsu, Managing Director of MediaTek Innovation Fund
The funding will go toward expanding manufacturing capacity, speeding up the process of qualifying new customers, and growing what the company calls its TFLN Chiplet platform. This platform is meant to cover three different uses at once: short-distance connections inside data centers, longer-distance telecom links, and the newer co-packaged optics format. Building one design that handles all three, rather than separate products for each, is the approach HyperLight says sets it apart from competitors.
That manufacturing ambition is not just talk. HyperLight already has a partnership with UMC and Wavetek to produce its chips at high volume, on both 6-inch and 8-inch wafers. That detail matters because it shows the company moving past prototypes and into the kind of production scale that semiconductor foundries are designed for. Zhang, for his part, described this round as more than a financial transaction.
"This financing is about more than capital, it is about ecosystem alignment. AI infrastructure requires optical interconnects that can deliver higher bandwidth, lower power, and manufacturing scale across pluggable optics and co-packaged optics. HyperLight has spent years building the TFLN technology, manufacturing foundation, and ecosystem relationships required to support that transition. This round accelerates our ability to scale with customers and partners globally." — Mian Zhang, CEO of HyperLight
HyperLight got its start in 2018 as a spinout from Harvard University. Zhang was a postdoctoral researcher at the time, working in the school's Laboratory for Nanoscale Optics alongside engineering professor Marko Lončar and graduate student Cheng Wang. Together, the three found a way to fabricate high-quality lithium niobate modulators at chip scale, something that had eluded researchers for years because the material is notoriously hard to manufacture in thin, precise layers. That early breakthrough became the basis for everything the company builds today.
Put simply, HyperLight makes small optical chips that convert electrical data into light, send it, and then convert it back again. This lets computers and data centers move information faster while using less power than they would with traditional electrical connections. The company does not run its own chip factories. Instead, it partners with established semiconductor foundries, a strategy that lets it scale production without the enormous cost of building fabrication plants from scratch. HyperLight also holds ISO 9001:2015 certification for its design and manufacturing processes, which signals a company gearing up for large industrial orders rather than one still working through early-stage prototypes.
This Series C builds on an earlier Series B round led by Summit Partners, whose leadership praised HyperLight's execution at the time and described thin-film lithium niobate as likely to become the dominant photonics platform going forward. The investor list for this new round is wide. It spans chip design firms, foundry operators, electronics manufacturers, and sovereign investment funds. That range says something about how many corners of the technology supply chain now see value in optical interconnects, from the companies that design the processors to the ones that physically assemble the finished hardware.
