IPG Photonics Corporation develops and manufactures fiber lasers, fiber amplifiers, and diode lasers. Its laser products include low, medium, and high output power lasers from 0.5 to 2 microns in wavelength; 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; solid-state lasers; laser diode chips and packaged laser diodes operating at 9XX nanometers; and high power optical fiber delivery cables, fiber couplers, beam switches, chillers, and accessories. The company also offers erbium-doped fiber and Raman amplifiers, and integrated communications systems; ytterbium and thulium specialty fiber amplifiers and broadband light sources; and single-frequency, linearly polarized, and polarization-maintaining amplifier products, as well as integrated laser systems, including welding seam stepper and picker, and laser marking and welding systems. Its lasers and amplifiers are used in materials processing applications; manufacturing of commercial systems; and research in advanced technologies and products by commercial firms, and academic and government institutions, as well as micro-processing, surface treatment, drilling, soldering, annealing, hardening, rapid prototyping, and laser-assisted machining. In addition, the company designs and manufactures dense wavelength division multiplexing (DWDM) transport systems; a range of fiber amplifiers; and Raman pump lasers, which enable data transmission in broadband access and DWDM optical networks, as well as sells commercial fiber and diode lasers for use in medical laser systems. It 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 worldwide. IPG Photonics Corporation was founded in 1990 and is headquartered in Oxford, Massachusetts.