Development of the titanium: sapphire laser1 has mainly been confined to laser pumping because of its short (3.2-μsec) spontaneous emission lifetime. Esterowitz et al.2 reported successful flashlamp pumping of Ti:AI2O3 with efficiency enhanced by using a dye surrounding the laser rod to convert near-UV light from the flashlamp into blue-green fluorescence overlapping the titanium absorption band (Fig. 1). The present work describes successful attempts to increase substantially the flashlamp pump efficiency and better characterize flashlamp-pumped behavior.

© 1985 Optical Society of America

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