Cascade laser oscillation due to Ho³⁺ions in a (Cr,Yb,Ho):YSGG yttrium-scandium-gallium garnet crystal

Abstract

Please note that terms and conditions apply.The excitation energies and term energies of the excited states 1s 2 ns (n=3,4,5) and 1s 2 nf (n=4,5) of lithium-like systems of Z=11-20

Infrared (2–12 μm) solid-state laser sources: a review

“…Cascade lasing consists in the oscillation on both transitions of the Ho 3+ in the same resonator. Such cascade oscillation scheme has been demonstrated for instance in Cr,Yb,Ho:YSGG [24]. Compared to cascade lasing, however, the use of a deactivator, e.g., Pr 3+ (see Fig.…”

Diode-pumped laser and spectroscopic properties of Yb,Ho:GGAG at 2 µm and 3 µm

“…Unlike Er 3+ -doped media, pure Ho 3+ -doped materials cannot be directly pumped by a commercial high-power laser diode to obtain laser action in the 3 µm region. This problem can be solved by co-doping this material with Yb 3+ [6][7][8]; the first proposal and lasing with Yb,Ho-doped YSGG crystal were achieved in 1993 [9]. If Yb 3+ together with Ho 3+ are doped into a matrix it is possible to use a laser diode emitting near 970 nm as a pumping source.…”