Optimization of a chirped-pulse amplification Nd:glass laser

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Abstract
To allow us to achieve the highest focused intensity from a chirped-pulse amplification Nd:glass laser, a number of features of the system have been considered and optimized. These include the compressor geometry, the system aberrations, and the use of mixed glasses in the amplifier chain. Calculations for the laser with a single- or double-pass pulse compressor with 450-mm gratings are presented. These indicate that, for single pass, a reduction in pulse duration from 380 to 237 fs is possible when a phosphate is changed to a mixed phosphate–silicate glass system, and there is a corresponding increase of 44% in peak intensity at beam focus.