Coherent Corp.
Coherent Corp. develops, manufactures, and markets engineered materials, optoelectronic components and devices, and laser systems for the use in the industrial, communications, electronics, and instrumentation markets worldwide. It operates through three segments: Networking, Materials, and Lasers. The Networking segment offers transceivers, systems, subsystems, modules, components, optics, and semiconductor devices for datacenter and communications applications. The Materials segment provides engineered materials, laser optics, thermoelectric components, and advanced ceramic and metal-matrix composite materials and products; and vertical-cavity surface-emitting laser, edge-emitting laser, pump lasers, high-power lasers for materials processing, and integrated circuit. The Laser segment offers excimer lasers, solid-state lasers, CO2 lasers, and laser systems for various industrial applications, including semiconductor capital equipment, display manufacturing, precision manufacturing, and scientific research; and laser systems and subsystems. It markets its products and services through direct sales force, representatives, and distributors. The company was formerly known as II-VI Incorporated and changed its name to Coherent Corp. in September 2022. Coherent Corp. was incorporated in 1971 and is headquartered in Saxonburg, Pennsylvania.
What does it do?
Coherent makes the hardware that moves data through the internet at the speed of light. Think of them as the plumbing company behind AI — they build the fiber-optic transceivers (tiny devices that convert electrical signals into light pulses) that let data centers talk to each other instantly. They also make industrial lasers used to cut and weld materials in factories, and the engineered materials that go inside semiconductors and other high-tech devices. If you've ever streamed a video or used a cloud app, data almost certainly passed through one of their components.
The AI boom requires massive investment in data center networking, and Coherent sits right at the center of that spending wave — their transceivers are essential for the ultra-fast connections between AI servers that companies like Microsoft, Google, and Amazon are building out right now. Revenue jumped 23% year-over-year from $4.7B to $5.8B, signaling that demand is already accelerating. With the world needing faster and faster data pipes to run AI models, Coherent's products are becoming more critical, not less.
How does it make money?
Coherent makes money across three business segments. The Networking segment — their biggest growth engine — sells optical transceivers and components to data center operators and telecom companies; this is where AI-driven demand is surging. The Materials segment sells specialty substrates and engineered materials (think exotic compounds used inside chips and lasers) to semiconductor manufacturers. The Lasers segment sells high-powered laser systems used in industrial manufacturing like cutting, welding, and medical equipment. With $5.8B in annual revenue, Networking is driving the growth story while Lasers and Materials provide steadier, more mature income.
Why do investors care?
The bull case is straightforward: every major tech company is spending billions building out AI infrastructure, and that infrastructure needs optical networking — Coherent's specialty. The company is also one of very few players capable of making 800G and 1.6T transceivers, the next-generation high-speed components that hyperscalers (big cloud companies) desperately need. What has to go right is that AI capex spending stays strong, Coherent executes on margin improvement (it's currently running near breakeven on profits despite $5.8B in revenue), and the company successfully pays down the debt it took on when it merged with II-VI and Finisar in recent years.
Deep Dive
MemberA full investor briefing on Coherent Corp. — history, leadership, risks, and outlook.