Generation and transformation of azimuthal and radial polarization in a typically three-element Nd:GdVO4 laser

Ken Chia Chang, Ming-Dar Wei

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Based on the birefringence of the laser crystal and cavity design, a simple method directly generate radially and azimuthally polarized laser beams with a c-cut Nd:GdVO4 in a three-element cavity. The experimental results reveal that the transformations of polarization are observed by tuning cavity length with hundreds of micrometer. The slope efficiency is maintained up to 36.7% and output power reaches up to 1.34 W with the pump power of 5 W. The degree of polarizations can be greater than 92.2% for both of azimuthally and radially polarized beams. By considering the extraction efficiency from pump energy with the condition of changing the cavity length for o-ray and e-ray, mechanism of polarization transformation in the laser is discussed.

Original languageEnglish
Title of host publicationLaser Beam Shaping XV
EditorsAndrew Forbes, Todd E. Lizotte
PublisherSPIE
ISBN (Electronic)9781628412215
DOIs
Publication statusPublished - 2014 Jan 1
EventLaser Beam Shaping XV - San Diego, United States
Duration: 2014 Aug 172014 Aug 19

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9194
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherLaser Beam Shaping XV
CountryUnited States
CitySan Diego
Period14-08-1714-08-19

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Chang, K. C., & Wei, M-D. (2014). Generation and transformation of azimuthal and radial polarization in a typically three-element Nd:GdVO4 laser. In A. Forbes, & T. E. Lizotte (Eds.), Laser Beam Shaping XV [919415] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9194). SPIE. https://doi.org/10.1117/12.2061489