Diode-pumped regenerative amplifier delivering 100-mJ single-mode laser pulses
- 15 March 2001
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 26 (6), 337-339
- https://doi.org/10.1364/ol.26.000337
Abstract
We report on a side-pumped Nd:phosphate laser regenerative amplifier that delivers laser pulses of as much as 100 mJ in a single TEM mode. The laser beam is mode matched to the amplification medium by an intracavity fused-silica phase plate for mode shaping and a telescope for adjustment of the beam mode to the amplification rod section such that most of the energy stored in the rod is transferred to the laser pulses. As a result of the good overlap and the low loss, an optical-to-optical conversion efficiency of as much as 10% was measured for a pumping current of 80 A and greater than 100-mJ output pulses.Keywords
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