1 April 1993 Frequency-doubled Nd:YAG laser using amplifiers in slab geometry
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A high-power frequency-doubled Nd:YAG laser using amplifiers in slab geometry has been developed to pump a dye laser as part of a spectroscopy experiment. The necessary fast synchronization within the experiment required a special pumping method that resulted in a more than four times higher average thermal load of the Nd:YAG crystals than it would be in a system with no synchronization requirements. Under these conditions, the laser was routinely operated at a repetition rate of 20 Hz, delivering about 600 mJ at 532 nm divided among four beams, which corresponds to a frequency conversion efficiency of more than 60%. Compared to a system with amplifiers in conventional rod geometry, the use of the slab geometry in the amplifiers made possible an increase of the repetition rate by a factor 4.
Christoph Luechinger, Hanspeter P. von Arb, Franz Studer, Josef R. Unternahrer, "Frequency-doubled Nd:YAG laser using amplifiers in slab geometry," Optical Engineering 32(4), (1 April 1993). https://doi.org/10.1117/12.61208


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