Abstract
An optically pumped red vertical-external-cavity surface-emitting laser with an AlInGaP gain region produced more than 1W of continuous-wave output power at a wavelength of 675nm. Frequency doubling in a beta-barium borate crystal placed at an intracavity beam waist generated 120mW of total output power at 338nm. Using an intracavity birefringent filter a second harmonic tuning range of ∼5nm was achieved.
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