Abstract

Method for converting a gaussian laser beam into a uniform beamby a lenslike medium with gain or lossJ. Linares and C. Gomez -ReinoLaboratorio de Optica. Departamento de Fisica AplicadaFacultade de Fisica. Universidade de Santiago de Compostela15706 Santiago, Galicia, Spain.ABSTRACTA tapered lenslike system with gain or losses is proposed for converting a gaussian laserbeam into an uniform beam. The best foci of the lenslike system are determined: Best FrontFocal Distance (BFFD) and Best Back Focal Distance (BBFD). The results are applied to amedium with quadratic gain profile to achieve uniform illumination controlling the gainparameter.

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