Alexandrite laser pumped by semiconductor lasers

We report the first operation of a direct diode-pumped tunable chromium-doped solid-state laser. A small alexandrite (Cr:BeAl2O4) crystal was longitudinally pumped by two visible laser diodes. The threshold pump power was 12 mW using the R1 line at 680.4 nm for the pump transition, and the slope eff...

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Veröffentlicht in:	Applied physics letters 1990-06, Vol.56 (23), p.2288-2290
Hauptverfasser:	SCHEPS, R, GATELY, B. M, MYERS, J. F, KRASINSKI, J. S, HELLER, D. F
Format:	Artikel
Sprache:	eng
Schlagworte:	ALKALINE EARTH METAL COMPOUNDS BERYL BERYLLIUM COMPOUNDS BERYLLIUM SILICATES DESIGN EFFICIENCY ENERGY ENERGY-LEVEL TRANSITIONS ENGINEERING Exact sciences and technology Fundamental areas of phenomenology (including applications) LASER MATERIALS LASERS MATERIALS MINERALS OPERATION OPTICAL PUMPING Optics OXYGEN COMPOUNDS Physics PUMPING QUANTUM EFFICIENCY SILICATE MINERALS SILICATES SILICON COMPOUNDS 426002 > Engineering-- Lasers & Masers-- (1990-) SOLID STATE LASERS THRESHOLD ENERGY
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Zusammenfassung:	We report the first operation of a direct diode-pumped tunable chromium-doped solid-state laser. A small alexandrite (Cr:BeAl2O4) crystal was longitudinally pumped by two visible laser diodes. The threshold pump power was 12 mW using the R1 line at 680.4 nm for the pump transition, and the slope efficiency was 25%. The measured laser output bandwidth was 2.1 nm.
ISSN:	0003-6951 1077-3118
DOI:	10.1063/1.102942