Control of laser radiation parameter

Quality anaiysis and correction of aberrations in spatial filters used in high-power laser apparatus

A. A. Malyutin


Abstract: An analysis is made of spherical aberrations produced by a sequence of spatial filters of a kind used in high-power laser systems. A simple method for correcting these aberrations without recourse to aspherical optics is proposed. It is shown that a high-quality beam can be formed at the exit of a laser using a single two-component objective whose own aberrations are equal and opposite in sign to the overall aberrations of the whole system.

UDC: 621.3.038.8

PACS: 42.79.Ci, 42.15.Fr, 42.60.Jf

Received: 06.10.1989

 English version: Soviet Journal of Quantum Electronics, 1990, 20:8, 926–930

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