1990/04/26 by J.N. Carter, R.G. Smart, D.C. Hanna +1
Engineering · #Photonic Crystal and Fiber Optics #Solid State Laser Technologies #Advanced Fiber Optic Sensors
paper · doi:10.1049/el:19900394
Operation of a diode-pumped continuous-wave thulium-doped fibre laser on the 3H4 – 3H6 transition at ≃1.97 μm is reported. The absorbed pump power at threshold for a multimode fibre with 40 μm core diameter was measured to be ≃20 mW.