Lightmatter

Lightmatter was just named one of the 10 coolest semiconductor startups of 2026 by @CRN. We're proud to be recognized alongside other innovators pushing the boundaries of AI infrastructure and tech hardware — see page 7 for our overview. Thanks @markharanas for the spotlight. @theanalognick crn.com/news/computing…

Lightmatter is in the spotlight in @IEEESpectrum! The latest feature explores a critical turning point in data center architecture as the industry rapidly transitions to optical networking inside the rack. In the article our VP of Product, Roy Kim, breaks down how Lightmatter is solving the copper bottleneck. While traditional methods rely on interfacing optical chiplets to the edges of processors, we’re 3D-integrating silicon photonics as the interconnect fabric inside the package. With Passage photonic interposers, we allow processors to stack vertically—bypassing the edge-routing chokepoints that limit communications bandwidth. The packaging hurdles of the past have been cleared. Today, scale-up networking also requires dense, high-performance external laser solutions. Lightmatter is tackling this head-on by integrating lasers directly onto silicon, driving unprecedented bandwidth density and scalability. Read the full article: spectrum.ieee.org/nvlink-fusion-…

The future of AI scale-up is optical. With global fiber supply already strained, how you transition to photonic interconnects matters. Lightmatter's industry-leading Passage BiDi architecture, built for NVIDIA's NVLink Fusion ecosystem, was designed for exactly this constraint. By enabling simultaneous bidirectional signaling over the same optical paths, our BiDi links cut required optical fibers and connectors in half. “Integrating Lightmatter’s advanced photonic engines into the NVLink Fusion ecosystem provides our partners and hyperscale customers with more choice and flexibility to build specialized, energy-efficient AI infrastructure at unprecedented scale.” –Ashish Karandikar, Vice President of Engineering, NVIDIA lightmatter.co/press-release/… #BiDi #SiliconPhotonics #AIHardware #NVIDIA #NVLinkFusion

We look forward to participating in @lightcounting's special virtual conference focused on Co-Packaged Optics and Near-Packaged Optics on July 15. Steve Klinger joins other industry experts to discuss the latest progress in CPO and NPO standardization and ecosystem development, highlight key enabling technologies, and explore the path toward scalable deployment. Register here: us02web.zoom.us/webinar/regist…

In the latest EE Times podcast "AI With Sally," our Founder and CEO Nick Harris spoke with Sally Ward-Foxton about photonics in the data center. In the episode, Harris explains why AI has shifted from a compute-bound problem to an interconnect- and memory-bound one, how Lightmatter evolved from pursuing photonic processors to building optical networking technology, and why the company's new integrated laser platform represents the next step toward scaling AI infrastructure beyond what copper can support. Watch the full episode: youtube.com/watch?v=q2Y3WP… @theanalognick @eetimes @sallywf

We’re excited to share that our PassageⓇ silicon photonics platform has been selected as the winner of the “AI Semiconductor Innovation Award” in the 9th annual @AI_Breakthrough Awards program! For nearly a decade, the AI Breakthrough Awards have researched, analyzed and recognized the most important advances in artificial intelligence, and this year's field was the strongest yet. Learn more about our Passage platform: lightmatter.co/products/passa…

We're thrilled to welcome 31 incredible interns to the Lightmatter team this summer! From top universities across the world, this talented cohort of original thinkers is joining us to push the boundaries of photonic computing and help shape the next generation of technology. Our interns aren't just here to watch. They'll be diving straight into meaningful projects, collaborating with Lightmatter teams, and bringing fresh perspectives to our mission.

Join Steve Klinger, VP of Ecosystem and Strategic Alliances, for his talk “Solving the Interconnect Wall: Redefining Reliability and Serviceability for Next-Generation AI Clusters.” His session is part of the @PhotonicsSpec Integrated Photonics Summit on Thursday, June 25th at 8:30 am PT. Register for no cost at events.photonics.com/Badge.aspx?EID…

Join Kaushik Patel next week at OIP for a talk on overcoming the challenges of scaling high-volume manufacturing for co-packaged optics. The IEEE Optical Interconnects and Packaging (OIP) Conference is dedicated to solving the future of high-density optical interconnects and packaging. lightmatter.co/event/optical-…

Lightmatter was in the spotlight at Computex & GTC Taipei—featured right in Jensen Huang’s opening keynote! We’re proud to bring our Passage interconnects & Guide lasers to the @Nvidia NVLink Fusion ecosystem as the optics partner with industry-first bidirectional link tech. Our solutions aren't just built for the future of AI hardware—they are the fabric connecting it. @theanalognick @NVIDIAGTC Tapei @computextaipei #NVLinkFusion #Photonics #AIinfrastructure #artificialintelligence

A note from our Founder & CEO Nick Harris on the @NVIDIA NVLink™ Fusion ecosystem - "Scale-Up is a Problem Made for Photonics" #AI #Photonics lightmatter.co/blog/scale-up-…

Lightmatter joined the @NVIDIA NVLink™ Fusion ecosystem! Frontier AI models are outgrowing electrical links. The integration of Passage photonics with NVIDIA’s architecture enables hyperscalers to build the highest-bandwidth, lowest-power AI factories. #AI #Photonics Read the press release here: lightmatter.co/press-release/…

Ever wonder how a silicon photonics chip goes from wafer to data center rack? Take an inside look at the end-to-end manufacturing journey for the Passage M1000 3D photonic interposer. From advanced packaging and automated fiber assembly to final rack integration, see how we deliver 114 Tbps of optical bandwidth for AI data centers. Watch now: lightmatter.co/resource/light… @GlobalFoundries @ASEGlobal @AmkorTechnology Browave @SenkoConnect Rocket EMS

Co-packaged optics is becoming a critical conversation in AI infrastructure — and it will take a full ecosystem to move it forward. At @LightmatterCo InterConnect 2026 ecosystem and media event, I joined Nicholas Harris, Simona J., Ritesh Jain and Bob Turner to discuss the market, key challenges and the roadmap for CPO. Great discussion and an important moment for the industry. #InterConnect2026 #CoPackagedOptics #AIInfrastructure #650Group

Thank you to everyone who joined us for an afternoon of innovation and networking. We’re proud to be building the photonic foundation for the next generation of hyperscale data centers.

Product Announcement: We officially unveiled Guide DR, the industry's first liquid-cooled laser NIC that quadruples fiber bandwidth density. See press release: lightmatter.co/press-release/…

That’s a wrap for our second annual InterConnect! We were thrilled to welcome the industry’s top analysts, investors, media and ecosystem partners to our new headquarters in downtown Mountain View for an inside look at the future of AI infrastructure.