Applied Physics Letters · 1990 · 89 citations · 3 references
EngineeringElectrical EngineeringMaterials ScienceOptoelectronicsPhotonicsSemiconductor MaterialsLaser DiodesLaser OpticsLaser PhysicsOptical Properties Of SolidsRare-earth-doped MaterialsSemiconductor LasersCrystal Host MaterialsLaser MaterialsSemiconductor Laser DiodesSolid-state LasersTunable Laser DiodesVisible Laser Diodes
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.
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The measurement of internal losses in 4-level lasers
David M. Findlay, R.A. Clay · Physics Letters · 1966 · 536 citations
Tunable alexandrite lasers: Development and performance
J. C. Walling, D. F. Heller, H. Samelson et al. · IEEE Journal of Quantum Electronics · 1985 · 134 citations
Natural Sciences, Materials Engineering, Materials Science +17
Efficient laser diode pumped Nd lasers
Richard Scheps · Applied Optics · 1989 · 39 citations