Model of small-scale self-focusing and spatial noise in high power laser driver



A linearization model was used to analyze the laser beam propagation in a high power laser driver and the influence of the small-scale self-focusing and spatial phase noise on beam quality in disk amplifiers. The quantitative relations between intensities of spatial phase noise, B-integral, and beam intensity contrast in near field are given explicitly. A spectrum specification of phase noise has been obtained by setting a limit to the contrast of an output beam.


small-scale self-focusing beam quality modulation contrast phase noise B-integral 


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Copyright information

© Science in China Press 2002

Authors and Affiliations

  1. 1.Laboratory of Light Transmission OpticsSouth China Normal UniversityGuangzhouChina

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