Abstract
Various ways to create a master radiator at wavelength 1.315 μm are considered, and its optimum construction layout is chosen, based on obtaining efficient emission of the second Stokes component in a stimulated-Raman-scattering solid-state laser. An analysis is given of active crystals, and two solid-state pairs are proposed: laser crystal Gd<sub>3</sub>Ga<sub>5</sub>O<sub>12</sub>:Nd+a crystal of KY(WO<sub>4</sub>)<sub>2</sub>, and laser crystal LaF<sub>3</sub>:Nd+a crystal of KGd(WO<sub>4</sub>)<sub>2</sub>. A version of the layout with reduced losses is considered, based on Stokes components with simultaneous suppression of parasitic inversion dumping at a neodymium transition in the 1.3-μm region. The laser signal is amplified in a preamplifier stage based on iodine vapor, the gain was 150, and an output energy up to 60 mJ is obtained.
© 2014 Optical Society of America
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