Direct generation of a first-Stokes vortex laser beam from a self-Raman laser

Andrew J. Lee, Takashige Omatsu, Helen M. Pask

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51 Citations (Scopus)
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We demonstrate the direct generation of a first-order LG01 Laguerre Gaussian (vortex) mode operating at the first-Stokes wavelength of a diode end-pumped, Nd:GdVO4 self-Raman laser. To the best of our knowledge, this is the first report of intracavity stimulated Raman scattering (SRS) being used as a method for frequency conversion of a vortex laser beam and it is effective in enabling the frequency-converted (Stokes) beam to have the same LG01 mode as the fundamental beam.

Original languageEnglish
Pages (from-to)12401-12408
Number of pages8
JournalOptics Express
Issue number10
Publication statusPublished - 20 May 2013

Bibliographical note

This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: []. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.


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