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AI Value-Chain & Enterprise Technology Research
POET's new Lumilens partnership gives it real orders and firm footing in both indium phosphide and silicon photonics AI optics. The jointly developed electrical-optical interposer upgrades its silicon photonics compatibility, so it can build engines from either top-tier InP/EML parts or Lumilens silicon photonics chips on the same wafer-scale base. It is a measured hedge as InP supply tightens, without abandoning its core optical interposer for discrete InP engines. x.comÂ
If POET Technologies' claim holds that its optical interposer runs on plain 8-inch bulk silicon rather than costlier SOI wafers, it has a structural cost edge. Bulk silicon taps underused 8-inch fab capacity, and features etched into the wafer allow automated passive alignment at 800G and 1.6T volumes, giving cheaper optical engines. Marvell cancelling Celestial AI purchase orders was a genuine setback, but LITEON, Lessengers and a recent $5M order keep the thesis intact. x.comÂ
POET's deal with Lumilens is a $500M validation that could move it from lab tech to commercial scale. The supply and joint development agreement starts with a $50M order for optical engines and could scale to $500M over five years, with samples in late 2026 and volume production in 2027. Its optical interposer integrates electronics and photonics in one chip-scale package, beating power-hungry pluggables. 2026 should be the year of validation, 2027 the year of revenue. x.comÂ
POET's new supply and joint development deal with Lumilens, a $50 million initial order for optical engines and potentially $500 million over five years, places it at the next AI bottleneck. As GPU clusters scale to hundreds of thousands of chips, moving data between them at the speed compute requires becomes the constraint. Copper doesn't get there and photonics does, and POET's optical engine platform sits exactly at that intersection. x.comÂ
POET Technologies is uninvestable because its management has lost the trust of the big players. In April its CFO leaked information that led to the cancellation of Celestial AI and Marvell contracts. Being early in interposers and packaging does not make it a co-packaged optics winner, as others will catch up. Its TFLN partner QCI trails Hyperlight and is stuck on a 6-inch line, with no 8-inch wafer demo yet to show it can scale. x.com x.comÂ
POET Technologies fits the complex networking bottleneck that Elon Musk flagged as harder than finding power for the AI buildout. POET and Lumilens expect to start shipping 800G pluggable transceivers at scale to Lumilens' hyperscaler customers in 2027 to ease the high-speed data connectivity bottleneck. x.comÂ
POET Technologies and Sivers Semiconductors work as a pair trade, not an either/or. POET is the architecture bet: its optical engines and interposer platform plug into Celestial AI, which Marvell just spent $2B on and which feeds Nvidia; if that stack becomes standard, it is a 10x story. Sivers is the bottleneck beneath it, with InP laser arrays inside Ayar Labs' SuperNova. Every CPO roadmap, pluggable and Celestial engine needs a light source, and that source is Sivers. x.comÂ
POET Technologies' Lumilens deal looks weak because Lumilens lacks the cash to pay for its purchase orders and needs POET's stock to soar to cash out. Lumilens has nothing in an ultra-competitive optics sector with China. Claims of billions in orders are false; any Amazon order depends on executing several steps first, while Coherent sells about $5B of optics after 30+ years with access to fabs, lasers and ICs. x.com x.comÂ
POET's new Lumilens order could make it a pivotal niche bottleneck in AI infrastructure, with a wide moat. Lumilens placed a $50M initial order for POET's AI photonic optical engines, with a potential $500M over five years. If it truly works, it could be colossal, a Vertiv-like story developing in real time. The CEO, a former GlobalFoundries vice president with foundry-level manufacturing experience, could make POET central to the photonics industry. x.com x.com x.com x.comÂ
POET Technologies is the upstream pick-and-shovel for Celestial AI's Photonic Fabric, which Marvell just acquired for about $5B. POET supplies the light source that powers it, and Marvell has the hyperscaler relationships with AWS, Google and Meta to deploy it at scale. Revenue is still early, but once Marvell integrates Celestial and ramps production orders, the market should recognize POET's value; Q3 or Q4 2026 could be the inflection, and patience is required. x.comÂ
POET Technologies and Sivers, as co-packaged optics pure plays, lose because CPO adoption has moved right by a full generation. SemiAnalysis reports Nvidia's flagship Kyber NVL144 rack is delayed over 12 months to 2028 and its NVL72x2 backup was cancelled, while optical scale-up won't arrive until Feynman. Packaging and interconnect hit physical walls in the same cycle, and the entire thesis for these names rests on CPO timing. x.comÂ
A potential Lumentum acquisition could let Marvell pair custom AI chips with the optical infrastructure connecting them. Following Celestial AI, it could become one of the few companies offering both, moving toward an AI-focused version of Broadcom; financing a deal this large remains a major concern. x.comÂ
