Multiwavelength self-pumped solid state laser

Details Multiwavelength self-pumped solid state laser Multiwavelength self-pumped solid state laser

1980-04-03

1982-03-23

Sikes, William L.

Coherent light generators

Particular active media

Insulating crystal

372 70, H01S 316

Patent

active

043215599

ABSTRACT:
A new class of solid-state laser which employs self-pumping from internal laser transitions to achieve inversion in other transitions. A LiYF.sub.4 laser having an activator of trivalent holmium is pumped by a standard flashlamp or by a doubled Nd laser to populate the .sup.5 S.sub.2 manifold. Inversion is achieved between .sup.5 S.sub.2 and .sup.5 I.sub.5 at 1.4 .mu.m. Employing appropriate mirrors, inversion is then produced between .sup.5 I.sub.5 and .sup.5 I.sub.7 at 1.7 .mu.m. Finally inversion is obtained between .sup.5 I.sub.7 and .sup.5 I.sub.8 at 2.06 .mu.m.

REFERENCES:
Esterowitz et al, Long-Wavelength Stimulated Emission via Cascade Laser Aon in HO:YLF. Appl. Phys. Lett., vol. 35, No. 3 (Aug. 1, 1979) pp. 236-239.

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