How the company works
What it sells, how it makes money, and the anatomy of the extremes: what has to break for the result to land far from the forecast, either way. In Coherent's own words, from its annual report for fiscal 2026.
Coherent makes lasers, optical transceivers and other optical and optoelectronic devices, and the engineered materials inside them. Most of its revenue now comes from the optical links that connect AI data centers; the rest from lasers, optics and materials for factories, chip and display equipment, instruments and research. It makes many of its own critical parts, from indium phosphide lasers to optics.
How it makes money
Coherent sells components, modules and systems to cloud and AI data center operators, networking and telecom equipment makers, and industrial and instrument makers, through its own sales force and through distributors. Revenue was $7.12B in fiscal 2026, the year ended June 30, 2026, up 23% from $5.81B. Datacenter & Communications grew 40% on AI data center transceivers and data center interconnect; Industrial fell 10% after the sales of the aerospace and defense business and the Munich, Germany business. Two customers bought 20% and 12% of revenue, and customers headquartered in North America accounted for $4.63B.
What it sells
| Fiscal 2026 revenue | Revenue | Change |
|---|---|---|
| Datacenter & CommunicationsDatacom transceivers for AI networks, co-packaged optics, optical circuit switches, and the lasers, detectors, ICs and optics inside them; telecom transmission, transport and amplifier products. | $5,275M | +40% |
| IndustrialExcimer, solid-state and CO2 lasers and laser systems for chip and display equipment, precision manufacturing and research; engineered materials, laser optics and thermoelectric parts. | $1,844M | −10% |
The two segments replaced Networking, Materials and Lasers on July 1, 2025; the annual report recasts the prior year to match.
Unit economics
Coherent is vertically integrated: it grows its own materials, makes its own lasers, detectors and optics on 6-inch indium phosphide and gallium arsenide lines, and assembles them into transceivers and systems, with approximately 51,000 employees, 89% of them in manufacturing. Gross margin was 37% in fiscal 2026, up 233 basis points on lower input costs, faster cycle times and better yields. Datacenter & Communications earned $1,330M of segment profit, up 47%, and Industrial $423M, up 4%. Research and development was $723M. Growth is costly in cash: capital spending rose to $1,103M from $441M, inventories rose to $2.58B from $1.44B, and operating cash flow was $80M.
Competitive position
Coherent competes on technology from materials to systems, intellectual property, ability to scale, quality, on-time delivery and technical support, and names its vertical integration and worldwide factories as its advantages. Aside from data center transceivers, its markets have few industry-standard products. Its optical buyers are a small number of large systems makers and cloud operators who can press for price concessions or shift purchases to competitors. In March 2026 NVIDIA signed a multi-year agreement with a multi-billion-dollar purchase commitment and capacity rights, and invested $2 billion in Coherent's shares.
Biggest cost inputs
Indium phosphide substrates, ICs, digital signal processors, mechanical housings and optical components bought from suppliers; in Industrial, crystals, optics and exotic materials from sole or limited sources; rare-earth materials. Factory labor, mostly in the Asia-Pacific region, where 44,582 employees work. New capacity: the indium phosphide expansion in Sherman, Texas, backed by a $50 million preliminary CHIPS Act memorandum of terms.
Anatomy of a large upside
- AI optics demand keeps running ahead of supply. Cloud and AI customers keep building, the move from copper to optical links continues, and the industry-wide indium phosphide shortage lets Coherent's added capacity sell as fast as it comes online. The NVIDIA purchase commitment fills new lines, and 800G and 1.6T transceivers give way to 3.2T and 6.4T parts.
- Yields and new systems lift margins. The cost, cycle time and yield gains that raised gross margin 233 basis points continue, and new higher-margin systems, optical circuit switches, co-packaged optics and multi-rail solutions, add revenue on a research base already funded.
Anatomy of a large downside
- A few large customers cut or delay orders. Two customers bought 20% and 12% of revenue in fiscal 2026, and customers can reduce, delay or cancel orders with little notice. Coherent would carry the inventory built for them, $2.58B at June 30, 2026, noncancellable supplier commitments and fixed factory costs, so margins would fall faster than revenue.
- Trade rules or a production problem cut output. Tariffs, export controls or retaliation reach the factories in China, Malaysia and Vietnam or customers headquartered in China, who bought $813M in fiscal 2026. Or a ramp of new indium phosphide capacity or a new product runs into the yield problems the annual report warns of, and supply falls short of orders.
Written from Coherent's annual report for the fiscal year ended June 30, 2026. The upside and downside describe conditional business outcomes drawn from that report; the quarter's forecast and its cases are on the forecast pages.