Abstract
Sum frequency generation at 459 nm is demonstrated in a dual-wavelength coupled- cavity Ti:sapphire laser operating simultaneously at 808 nm and 1.06 µ. Enhanced operation of the Ti:sapphire laser at 1.06 µ is provided by a diode-pumped Nd:YAG active mirror. Comparable intracavity fluence at both wavelengths is produced, and 109 mW at 459 nm was generated with an intracavity KTP crystal. The conversion efficiency is 16% and the linewidth was less than 1 pm.
© 1993 Optical Society of America
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