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AI supply chain term

1.6T optics

1.6T optics are the next generation of optical transceiver modules, doubling the per-module data rate to 1.6 terabits per second.

What it means

1.6T optics are the next generation of optical transceiver modules, doubling the per-module data rate to 1.6 terabits per second so that network bandwidth stays ahead of faster accelerators. They typically move from 100G to 200G per electrical and optical lane, which sharply raises the engineering difficulty around signal integrity, laser performance, and thermal management. In the AI supply chain they occupy the same position as 800G optics, linking switches, GPUs, and racks across the network fabric, but they are the bandwidth uplift that next-generation training and inference clusters depend on as models and clusters grow. Because the step to 1.6T is hard, the module makers, laser suppliers, and DSP or silicon-photonics providers that qualify first can capture the early ramp, making 1.6T both a technical hurdle and a supply constraint.

Why it matters to investors

1.6T is the bandwidth generation next-gen fabrics are designed around, so the early winners are the optics and photonics suppliers that qualify at 200G-per-lane first. Exposure runs through module makers and their laser and DSP suppliers rather than the accelerator vendors themselves.

See 1.6T optics in the AI value chainIts live model score, why it matters, and every company exposed to it.

Companies on this part of the chain

POET Technologies Inc.POETApplied Optoelectronics, Inc.AAOIEoptolink Technology Inc., Ltd.300502.SZInnoLight300308.SZ

Named to show where the term sits in the AI supply chain — research, not advice, and never a recommendation to buy or sell.

Related terms

800G optics800G optics are pluggable optical transceiver modules that move data across a data center at 800 gigabits per second.Optical transceiver / photonicsA module that converts electrical signals to light (and back) for optical links.Silicon photonicsSilicon photonics is the practice of building optical parts — lasers, modulators, waveguides and detectors — on silicon chips using standard semiconductor manufacturing.Co-packaged optics (CPO)Co-packaged optics places the optical components in the same package as the switch chip to cut the power and distance electrical signals must travel.

See 1.6T optics in the live AI chain.

THE ENTITY maps every constraint onto one live model — which part is tight now, who owns it, and who gets squeezed when it moves. Plain-English reads you can check.

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THE ENTITY is an educational read on the AI supply chain — research, not investment advice. It explains how the chain works and who sits where, never price targets or buy/sell calls.