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Highly efficient laser emission in concentrated Nd:YVO4 components under direct pumping into the emitting level

2002; Elsevier BV; Volume: 201; Issue: 4-6 Linguagem: Inglês

10.1016/s0030-4018(01)01720-5

1873-0310

V. Lupeǐ, N. Pavel, Takunori Taira,

Laser Design and Applications

Reduction of the quantum defect in four-level lasers by pumping directly into the emitting level can improve laser emission parameters and diminish heat generation. Using concentrated components can compensate reduced absorption in the emitting level of Nd laser materials. These benefits are demonstrated by stable and highly efficient 1064 nm continuous-wave laser emission of Nd:YVO4 components of 1, 2 and 3 at.% Nd under end-pumping into 4F3/2 at 878.6 nm with a Ti:sapphire laser.