1-kW, All-Glass Tm:fiber Laser

摘要

The Tm:fiber laser is a promising source of high-power, eyesafer, 2000-nm power.Starting in 1998, the power output and efficiency of double-clad, Tm-doped fibers have both steadily risen. In published work, we have previously reported a total of 885 W of multimode power from two ends of a free-space-pumped, multimode Tm:silica fiber laser, with 50% optical-optical efficiency. Northrop Grumman, also using free-space pumping,has reported 608 W of single-mode, single-frequency power.