Co-packaged Optics
Articles (8)
TSMC Names Lasers, Fiber, Connectors and Test as Co-Packaged Optics Scaling Constraints
Taiwanese trade press report TSMC's K.C. Hsu cited four constraints on CPO deployment. TrendForce still sees engine yield, fabrication and packaging as limits.
OCP Maps the Co-Packaged Optics Stack. Photonic Die Testing Remains an Open Problem.
Open Compute Project's 294-page vision assigns an owner to each layer of the co-packaged optics stack, except one: photonic die testing, which the paper itself labels unowned.
Delay-Line Memory Returns: A Swedish Team Proposes Trading HBM for 14,000 Kilometers of Glass
Uppsala researchers propose streaming LLM weights through spooled fiber instead of HBM. The design is a sketch; the DRAM market that provoked it is very real.
Co-Packaged Optics Has Two Front Doors. Only One Fixes the Scale-Up Bottleneck.
At Computex 2026, Wiwynn and eight ecosystem partners showed a full optical scale-up rack built around compute-side optics. It is a useful moment to separate two technologies the supercomputing industry keeps filing under one acronym.
Copper Kings Buy the Fiber Layer: Credo and Molex Lock Down Silicon Photonics in 48 Hours
Two acquisitions, two days apart, at adjacent layers of the same stack. Credo's $873M cash-and-stock deal for DustPhotonics and Molex's Teramount buy tell the market the copper-era interconnect champions have decided the AI factory's fiber layer isn't something they're willing to source.
NVIDIA's $4 Billion Photonics Bet Is an Admission: The AI Buildout Has a Materials Problem
NVIDIA's $4B investment in Lumentum and Coherent signals indium phosphide scarcity and power equipment lead times are gating $2.52T AI spending forecast.
Samsung Bets Vertical Integration Can Close TSMC's Silicon Photonics Lead
Samsung launched a silicon photonics foundry platform at OFC 2026, targeting 2028 PIC mass production and 2029 CPO services, pitching vertical integration of HBM, logic, packaging, and photonics against TSMC's production lead
NVIDIA's $4 billion photonics bet tells you where copper dies
Investments in Coherent and Lumentum, OFC 2026 timing, and the conspicuous absence of NVLink CPO. NVIDIA knows optical interconnects are the next bottleneck, and it's moving to own the solution.