Datacenter transceivers
Datacenter & Communications revenue reached $5.27 billion in fiscal 2026, up 40%.
The numbers
What it is
Optical transceivers that connect AI accelerators and switches inside datacenters. The 10-K names 800G and 1.6T transceivers, along with silicon photonics and VCSEL platforms, as the core of the datacenter line.
Why it matters to the stock. This is the largest share of revenue and the main driver of the company's growth. Trader focus is on transceiver volume, pricing and gross margin as AI networks move to faster speeds.
News
Coherent capex climbs to $547.2 million for nine months as it adds capacity
In its fiscal Q3 2026 release, Coherent reported additions to property, plant and equipment of $547.2 million for the nine months ended March 31, 2026, up from $309.5 million a year earlier.
Coherent and Tower Semiconductor demonstrate 400 Gbps-per-lane silicon modulator
Tower Semiconductor and Coherent announced a breakthrough demonstration of 400 Gbps-per-lane transmission through a silicon modulator built in a production-ready silicon photonics process.
Coherent demonstrates multiple 1.6T pluggable transceivers and 400G-per-lane links at OFC
Coherent showed several 1.6T pluggable transceivers at OFC 2026 that use different optical technologies, including silicon photonics, a high-power InP CW laser, 200G InP EML and 200G GaAs VCSEL.
Coherent fiscal Q2 2026 revenue $1.69B, up 17.5%, with guidance for $1.70B-$1.84B
Coherent reported revenue of $1,686 million for the quarter ended December 31, 2025, up 17.5% from a year earlier and about 22% on a pro forma basis after the aerospace and defense sale.