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Generating Ince-Gaussian beams from external He-Ne laser
Pages: 522-525
Year: Issue:  6
Journal: Optical Technique

Keyword:  laserInceGaussian modesHe-Ne laser;
Abstract: A new method for generating Ince-Gaussian beams(IGBs)directly from a external plan-concave He-Ne laser is proposed.These IGBs have an inherent elliptical symmetry.A big discharge tube with a diameter of 3.5mm is made.By slightly adjusting the pitch angle of tube and spherical reflector,the symmetry of resonant cavity can be broken,in which way ample of high order beams include IGBs are obtained.The experimental graphics exhibit good agreement with the theoretical ones.
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