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Optical Engineering

Frequency-doubled Nd:YAG laser using amplifiers in slab geometry
Author(s): Christoph Luechinger; Hanspeter P. von Arb; Franz Studer; Josef R. Unternahrer
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Paper Abstract

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.

Paper Details

Date Published: 1 April 1993
PDF: 7 pages
Opt. Eng. 32(4) doi: 10.1117/12.61208
Published in: Optical Engineering Volume 32, Issue 4
Show Author Affiliations
Christoph Luechinger, ETH/Zurich (Switzerland)
Hanspeter P. von Arb, Optiray AG (Switzerland)
Franz Studer, ETH/Zurich (Switzerland)
Josef R. Unternahrer, GE Corporate Research and Development Ctr. (United States)

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