Diode pumped yellow dysprosium lasers.
First operation of the 4F₉/₂ → 6H₁₃/₂ laser transition in dysprosium doped yttrium aluminum garnet is reported. Efficient room temperature operation at 583 nm was obtained using 447 nm GaN diode lasers pumps. Gaussian single-mode operation was demonstrated with a non-optimized slope efficiency of 12%. Millisecond pulsed operation generated 150 mW with power limited by the pump diodes' brightness.
Optical Material & Devices Branch US Naval Research Laboratory, 4555 Overlook Ave SW, Washington, DC 20375, USA. steven.bowman@nrl.navy.mil
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Bowman
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O'Connor
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Condon