Laser amplification system and method for correcting an asymmetrical, transverse radiation pressure profile in a laser-active medium of a solid

摘要

A laser amplification system comprising a solid state body (12) having a laser active medium, a first pump radiation source (28) for generating a first pump radiation field (30) passing at least three times through the solid body (12) for exciting the laser active medium, the laser amplification system comprising a second pump radiation source (28 ') for generating a second pump radiation field (30'), which passes through the solid body (12) at least three times for exciting the laser-active medium, wherein the first pump radiation field (30) and the second pump radiation field (30 ') are aligned so that in a transverse plane (34) defined by the solid body (12) is the sum of all first transverse components (36) of the first pump radiation field (30) impinging on the solid body (12) and the sum of all second transverse components (36 ') of the solid body (12) substantially compensate for the incident second pump radiation field (30 '), wherein d The laser amplification system has a first focusing device (32) which generates a plurality of different branches of the first pump radiation field (30) incident in the solid body (12) and at least one branch emerging from the solid body (12) entering one of the solid bodies (12) from the failing branch different branches, and at least a second focusing device (32 ') comprises, which generates several different in the solid body (12) branches of the second pump radiation field (30') and thereby at least one of the solid body (12) ausfallenden branch in one of the in the solid (12) incident and different branches from the failing branches, characterized in that the first pump radiation source (28) and the second pump radiation source (28 ') and the first, focusing system (32) and the second focusing system (32'; ) are aligned so that the transverse component (36) of the first branch of the first, on the Fe Stark (12) directed towards the pump radiation field (30) and the transverse component (36 ') of the first branch of the second, on the solid body (12) directed pump radiation field (30') and the transverse components of all other branches in pairs offset by 180 ° to each other Solid body (12) are aligned.