What Lightmatter makes for data centers
private · lightmatter.co
Lightmatter is a private company. It appears on 1 part of the AI data center — Silicon photonics & co-packaged optics — in the role of manufacturer. That part sits in Layer 3 — Networking & interconnect.
Exposure
1 part across 1 layer
No disclosed data-center revenue share on file.
Parts, by layer
Layer 3 — Networking & interconnect
| Part | Role | Confidence | Competitors | Note |
|---|---|---|---|---|
| Silicon photonics & co-packaged optics | manufacturer | disclosed | TSMC, Broadcom, GlobalFoundries, Intel, Marvell, Nvidia |
Where Lightmatter sits in the stack
Lightmatter's placements in this catalog cover 1 part, all in layer 3, networking & interconnect. None of them currently carries a sourced supply constraint tag. Across these parts it overlaps with other companies most often on the lines below.
What these parts are
- Silicon photonics & co-packaged optics — An approach that integrates optical components directly onto or next to the switch or GPU package, replacing some pluggable transceivers with light routed closer to the silicon.
Closest peers in this catalog
Latest feed
- Lightmatter Joins Open CPX MSA, Introduces Bidirectional CPX Optical Engine — HPCwire, 2026-09-18Lightmatter joined the Open CPX MSA and launched the Passage L20 CPX module, an Open CPX module designed to reduce optical cabling in AI scale-up networks by combining transmit and receive on a single fiber.
Questions about Lightmatter
- What does Lightmatter make for AI data centers?
- This catalog places Lightmatter on 1 part: Silicon photonics & co-packaged optics (manufacturer).
- Is Lightmatter publicly traded?
- No listing is on file for Lightmatter in this catalog; it is recorded as private.
- Who else makes silicon photonics & co-packaged optics for AI data centers?
- TSMC, Broadcom, GlobalFoundries, Intel, Marvell and Nvidia are also placed on Silicon photonics & co-packaged optics in this catalog.
- How well sourced are these placements?
- Every part→company placement carries a confidence tag. For Lightmatter the mix is 1 disclosed. "disclosed" means the company or a filing says so; "reported" comes from trade press or a reference-design list; "inferred" is a lead from the taxonomy with no citation yet. Treat reported and inferred as leads, not facts.
Answers are generated from this catalog's own rows — see sources & method.