Abstract
In this Letter, we report on laser operation of , pumped by a frequency-doubled optically pumped semiconductor laser. By employing a -type cavity, we demonstrate cw laser operation at room temperature in the green spectral range in a doped oxide host for the first time to the best of our knowledge. Furthermore, efficient laser operation was realized in the orange, red, and deep red spectral range with output powers exceeding 1.1 W at emission wavelengths of 643.6 and 724.4 nm.
© 2012 Optical Society of America
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