Effect of spherical aberration on laser beam self-focusing in the atmosphere

The effect of spherical aberration on the laser beam self-focusing in the atmosphere to assist delivering powerful laser beams from orbit to the ground is studied. It is found that for the small orbital mirror size, a Gaussian beam with negative spherical aberration might be more strongly compressed...

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Bibliographic Details
Published in:Optics letters 2015-08, Vol.40 (16), p.3881-3884
Main Authors: Deng, Hanling, Ji, Xiaoling, Li, Xiaoqing, Wang, Xianqu
Format: Article
Language:English
Subjects:
Aberration
Atmospheres
Diffraction
Gaussian beams (optics)
Grounds
Laser beams
Receivers
Spots
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Summary:The effect of spherical aberration on the laser beam self-focusing in the atmosphere to assist delivering powerful laser beams from orbit to the ground is studied. It is found that for the small orbital mirror size, a Gaussian beam with negative spherical aberration might be more strongly compressed without filamentation than that without spherical aberration, and its spot size on the ground can be reduced well below the diffraction limit. However, for the large orbital mirror size, spherical aberration will result in an increase of receiver size on the ground.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.40.003881