Spatial filters for multistage laser amplifiers

A K Poteomkin,T V Barmashova,A V Kirsanov,M A Martyanov,E A Khazanov,A A Shaykin

PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE)（2007）

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摘要

We describe spatial filters used in an Nd:glass laser with an output pulse energy up to 300 J and a pulse duration of 1 ns. This laser is designed for pumping of a chirped pulse parametric amplifier. We present data required to choose a shape and diameter of spatial filter lens, taking into account aberrations caused by spherical surfaces. Design features of spatial filters and the procedure of them adjustment are discussed in details.

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关键词

Nd:glass amplifiers,spherical aberrations,self-focusing,transport telescopes,M-2 parameter,beam shaping

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