Accession Number : ADD009658

Title :   Resonantly Pumped Mid-IR Laser.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Esterowitz,Leon ; Kruer,Melvin R

Report Date : 18 May 1982

Pagination or Media Count : 3

Abstract : A solid-state laser operative in the mid infrared region (3-5 micronmeter) comprises a YLF laser including a trivalent terbium activator which is pumped by a resonant external laser source (Ho:YLF, 2.06 micronmeter 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 7F2 manifold. Inversion is then between the 7F3 and 7F5 manifolds and laser oscillation at 4.1 micronmeter is obtained. (Author)

Descriptors :   *Patents, *Infrared lasers, *Laser pumping, Solid state lasers, Resonance radiation, Fluorine, Decay schemes, Intermediate infrared radiation, Holmium, Doping, Electron transitions, Atomic energy levels, Terbium, Yttrium, Lithium, Fluorides

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE