Generation of Robust Doughnut Mode Beam from Internal Mirror He-Ne Laser

Sunil Vyas; Yuichi Kozawa; Shunichi Sato

doi:10.1364/LS.2012.LW5I.6

Frontiers in Optics 2012/Laser Science XXVIII
OSA Technical Digest (online) (Optica Publishing Group, 2012),
paper LW5I.6
•https://doi.org/10.1364/LS.2012.LW5I.6

Generation of Robust Doughnut Mode Beam from Internal Mirror He-Ne Laser

Sunil Vyas, Yuichi Kozawa, and Shunichi Sato

Laser Science 2012

Rochester, New York United States
14–18 October 2012
ISBN: 978-1-55752-956-5

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General Laser Science I (LW5I)

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S. Vyas, Y. Kozawa, and S. Sato, "Generation of Robust Doughnut Mode Beam from Internal Mirror He-Ne Laser," in Frontiers in Optics 2012/Laser Science XXVIII, OSA Technical Digest (online) (Optica Publishing Group, 2012), paper LW5I.6.

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Abstract

Scalar doughnut mode beam is directly generated from an internal-cavity He-Ne laser. A spot-defect is created on a rear mirror to suppress a Gaussian mode. Intensity, phase and polarization distributions of the doughnut-mode are measured.

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