Abstract
The performance of a conical axicon dye amplifier pumped by a frequency-doubled Q-switched Nd:YAG laser is evaluated. The open aluminum axicon described forms a relatively inexpensive power amplification stage capable of routinely delivering pulse energies of several millijoules at 500 ps over a wavelength range of 610–660 nm. Measurements of the transverse-mode quality indicate excellent focusing properties.
© 1993 Optical Society of America
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