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Laser with simultaneous Gaussian and conical refraction outputs

Laser with simultaneous Gaussian and conical refraction outputs

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Original languageEnglish
Pages619-622
Number of pages4
JournalApplied Physics B: Lasers and Optics
Journal publication dateJun 2010
Volume99
Issue4
DOIs
StatePublished

Abstract

We report a double-sided two-mirror neodymium-doped KGd(WO4)(2)/Nd:KGW conical refraction laser which produces a linearly polarised output from the flat output coupler and a cone-refracted output from the curved output coupler. The linearly polarised output had a polarisation extinction ratio of 20:1 with a Gaussian beam profile and a measured M (2)=1. The unpolarised output had the intensity and polarisation distribution corresponding to a cone-refracted Gaussian beam with extinction ratio of 2.7:1.

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