The chip that turns electrical wiggles into pulses of light is about to become in-house property at Credo, which has agreed to buy an Israeli company called DustPhotonics. Upfront consideration is $750 million in cash plus about 0.92 million Credo shares, with up to roughly 3.21 million further shares payable if the business hits certain financial milestones.
DustPhotonics makes silicon photonics photonic integrated circuits, a mouthful the industry mercifully shortens to SiPho PIC. Picture a railway switchyard for light etched into a slab of silicon. Lasers, modulators and detectors that once sat as separate components, each needing its own careful alignment, get folded onto a single chip, which cuts the part count and, Credo argues, improves manufacturing yields.
Credo's day job is shifting bits across copper and glass at speeds that sound invented. Its products include SerDes circuits, said out loud as sir dez, which squeeze a wide slow bundle of signals into one narrow fast lane and unpack it at the other end, alongside digital signal processors and the active cables that hyperscalers run between racks. The optical engine at the far end of that chain was the piece it kept buying from someone else.
William Brennan, Credo's chairman, president and chief executive, made the strategic case: "Combining forces with DustPhotonics marks a defining step in Credo’s strategy to lead across the full spectrum of AI connectivity." Behind the ceremony sits a supply argument. Credo says owning the technology reduces its dependence on outside suppliers and opens a path to lower costs at volume, which is a tidy way of admitting it had been renting a critical component.
The parts list is where this gets concrete. DustPhotonics' PICs cover 400, 800 and 1,600 gigabits per second, with a published roadmap reaching 3.2 terabits, and Credo says they already ship inside transceivers at hyperscale AI clusters. The company was founded in 2017, employs about seventy people, and is fabless, meaning it designs chips and pays a foundry to build them.
By Credo's own reckoning, the combined optical business, covering its ZeroFlap transceivers, optical DSPs and silicon photonics, could bring in more than $500 million of revenue in fiscal 2027. That is a forecast rather than a result. For the market as a whole, Credo cited LightCounting unit data alongside its own estimates in putting silicon photonics PIC sales at $6 billion by 2030.
Ronnen Lovinger, DustPhotonics' chief executive, was more direct: "Joining Credo is the natural next step for DustPhotonics." Avigdor Willenz, its chairman, said silicon photonics is becoming a critical building block for AI infrastructure. Credo did not disclose DustPhotonics' revenue.
Completion is expected in the second quarter of calendar 2026, subject to regulatory approvals, so nothing changes in anyone's rack this month. What shifts sooner is the sales pitch. Credo can now offer a hyperscaler the whole path from a chip's output pin to the far end of the fiber, and that is a different meeting from selling one link in a chain somebody else assembles.
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