Resonantly pumped mid-ir laser

Details Resonantly pumped mid-ir laser Resonantly pumped mid-ir laser

1980-03-19

1982-05-18

Sikes, William L.

Coherent light generators

Particular active media

Insulating crystal

H01S 316

Patent

active

043307639

ABSTRACT:
A solid-state laser operative in the mid infrared region (3-5 .mu.m) comprises a YLF laser including a trivalent terbium activator which is pumped by a resonant external laser source (Ho:YLF, 2.06 .mu.m laser) to directly populate the upper laser level which achieves inversion before non-radiative decay depletes the initial laser-level population. The initial laser manifold that is externally pumped is the .sup.7 F.sub.2 manifold. Inversion is then between the .sup.7 F.sub.3 and .sup.7 F.sub.5 manifolds and laser oscillation at 4.1 .mu.m is obtained.

REFERENCES:
Jenssen et al., Stimulated Emission at 5445 A in Tb.sup.3+ :YLF, IEEE J. nt. Elect., vol. QE-9, No. 6 (Jun. 1973), p. 665.

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