IPG Photonics designs, manufactures, and sells high-performance fiber lasers, fiber amplifiers, diode lasers, and laser-based systems for materials processing, medical, and advanced applications. The company is vertically integrated, developing and manufacturing key components from semiconductor diodes to optical fiber preforms, which enables quality control, rapid innovation, and proprietary technology protection. It serves original equipment manufacturers, system integrators, and end users globally through a direct sales force, with primary revenue from materials processing applications such as welding, cutting, marking, and additive manufacturing across automotive, aerospace, and industrial sectors, supplemented by medical laser systems and advanced applications in directed energy, spectroscopy, and sensing.