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Coherent Corp. develops, manufactures, and markets engineered materials, optoelectronic components, and devices worldwide. It operates through two segments: Compound Semiconductors and Photonic Solutions. The Compound Semiconductors segment provides optical and electro-optical components and materials used in CO2 lasers, fiber-lasers, and direct diode lasers for materials processing applications; infrared optical components and high-precision optical assemblies for aerospace and defense, medical, and commercial laser imaging applications; semiconductor lasers and detectors for optical interconnects and sensing applications; engineered materials for thermoelectric, ceramics, and silicon carbide various applications; and compound semiconductor epitaxial wafers for applications in optical and wireless communication. The Photonic Solutions segment manufactures transceivers for data centers and telecom optical networks; pump lasers, optical amplifiers, wavelength selective switches, and advanced components for telecom networks; and crystal materials, optics, lasers, and optoelectronic modules in a range of applications, including optical communications, life sciences, and consumer electronics markets. It serves original equipment manufacturers, laser end users, system integrators of high-power lasers, U.S. government prime contractors, and various U.S. government agencies, as well as manufacturers of equipment and devices for industrial, optical communications, electronics, and instrumentation applications. 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.

IPG Photonics Corporation develops, manufactures, and sells various high-performance fiber lasers, fiber amplifiers, and diode lasers used in various applications primarily in materials processing worldwide. Its laser products include hybrid fiber-solid state lasers with green and ultraviolet wavelengths; fiber pigtailed packaged diodes and fiber coupled direct diode laser systems; high-energy pulsed lasers, multi-wavelength and tunable lasers, and single-polarization and single-frequency lasers; and high-power optical fiber delivery cables, fiber couplers, beam switches, chillers, scanners, and other accessories. The company also offers integrated laser systems; LightWELD, a handheld laser welding system; 2D compact flat sheet cutter systems and multi-axis systems for fine welding, cutting, and drilling; welding seam stepper and picker, a fiber laser welding tool; high precision laser systems; specialized fiber laser systems for material processing applications; robotic and multi-axis workstations for welding, cutting and cladding, flatbed cutting systems, and diode markers; and laser and non-laser robotic welding and automation solutions. It serves materials processing, communications, medical procedures, and advanced applications and communications markets. The company markets its products to original equipment manufacturers, system integrators, and end users through direct sales force, as well as through agreements with independent sales representatives and distributors. IPG Photonics Corporation was founded in 1990 and is headquartered in Marlborough, Massachusetts.

Lumentum Holdings Inc. manufactures and sells optical and photonic products in the Americas, the Asia-Pacific, Europe, the Middle East, and Africa. The company operates through two segments: Optical Communications (OpComms) and Commercial Lasers (Lasers). The OpComms segment offers components, modules, and subsystems that enable the transmission and transport of video, audio, and data over high-capacity fiber optic cables. It offers tunable transponders, transceivers, and transmitter modules; tunable lasers, receivers, and modulators; transport products, such as reconfigurable optical add/drop multiplexers, amplifiers, and optical channel monitors, as well as components, including 980nm, multi-mode, and Raman pumps; and switches, attenuators, photodetectors, gain flattening filters, isolators, wavelength-division multiplexing filters, arrayed waveguide gratings, multiplex/de-multiplexers, and integrated passive modules. This segment also provides Super Transport Blade, which integrates optical transport functions into a single-slot blade; vertical-cavity surface-emitting lasers; directly modulated and electro-absorption modulated lasers; and laser illumination sources for 3D sensing systems. It serves customers in telecommunications, data communications, and consumer and industrial markets. The Commercial Lasers segment offers diode-pumped solid-state, fiber, diode, direct-diode, and gas lasers, such as argon-ion and helium-neon lasers for use in original equipment manufacturer applications. It serves customers in markets and applications, such as sheet metal processing, general manufacturing, biotechnology, solar cell processing, graphics and imaging, remote sensing, and precision machining. Lumentum Holdings Inc. was incorporated in 2015 and is headquartered in San Jose, California.