Alexandrite laser pumped by semiconductor lasers

Authors:

4 June 1990

journal article
conference paper
Published by AIP Publishing in Applied Physics Letters

Vol. 56 (23) , 2288-2290
DOI:10.1063/1.102942

Abstract

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.

Keywords

BANDWIDTH
SOLID STATE LASERS
OPTICAL PUMPING
LASER MATERIALS
THRESHOLD ENERGY
DESIGN
ENERGY−LEVEL TRANSITIONS
QUANTUM EFFICIENCY
BERYL
OPERATION

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Efficient laser diode pumped Nd lasers
Applied Optics, 1989
Tunable alexandrite lasers: Development and performance
IEEE Journal of Quantum Electronics, 1985
The measurement of internal losses in 4-level lasers
Physics Letters, 1966