
Video: Lightmatter’s 3D Photonic Interposer
At the Hot Chips Conference at Stanford University, Darius Bunandar, Chief Scientist and Founder of Lightmatter, previewed his presentation on the company’s groundbreaking Passage…
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Lightmatter develops photonic computing and optical interconnect technologies designed to address bandwidth, power, and scaling challenges in AI infrastructure. The company combines silicon photonics, optical networking, and advanced packaging technologies to enable high-performance communication between AI accelerators, memory, and compute clusters.
| Headquarters | Mountain View, California |
| CEO | Nick Harris |
| Founded | 2017 |
| Primary Focus | Silicon Photonics, Optical Interconnects, AI Infrastructure, Photonic Computing |
| Key Platforms | Passage™, Envise™, Photonic Superchips, Optical Interconnect Fabric |
Latest reporting

At the Hot Chips Conference at Stanford University, Darius Bunandar, Chief Scientist and Founder of Lightmatter, previewed his presentation on the company’s groundbreaking Passage…

AI supercomputers are hitting a wall—not in compute, but in moving data fast enough. At today’s Hot Interconnects online event, Lightmatter CEO Nick Harris…

At OFC 2025, Lightmatter introduced two groundbreaking products—Passage™ M1000 and Passage™ L200/L200X—that redefine the future of AI infrastructure by delivering record-breaking bandwidth and eliminating interconnect bottlenecks. These next-generation…

Lightmatter selected GlobalFoundries (GF) to mass-produce its “Passage,” a 3D-stacked silicon photonics platform designed to meet the escalating demands of AI and high-performance computing…

Lightmatter has announced a strategic collaboration with Advanced Semiconductor Engineering, Inc. (ASE), the world’s largest semiconductor packaging and testing provider, to advance the Passage™…

Lightmatter, a start-up developing photonic interconnect and compute products, has appointed Simona Jankowski as Chief Financial Officer (CFO). Jankowski previously was vice president of…

Lightmatter, a start-up based in Boston, raised a $154 million Series C investment round for its photonic interconnects and processors. Lightmatter’s photonics-enabled products encompass…

Lightmatter, a start-up based in Boston developing a new class of photonic processing chip, named Richard Ho as its new Vice President of Hardware…

Lightmatter, a start-up based in Boston, has raised $80 million in Series B funding for its development of a new class of photonic processing…

Lightmatter, a start-up based in Boston, unveiled a wafer-scale, programmable photonic interconnect that allows arrays of heterogeneous chips (CPUs, GPUs, memory, accelerators) to communicate…
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