Picosecond optical vortex converted from multigigahertz self-mode-locked high-order Hermite-Gaussian Nd: GdVO4 lasers

H. C. Liang, Y. J. Huang, Y. C. Lin, T. H. Lu, Y. F. Chen, K. F. Huang

Research output: Contribution to journalArticle

22 Citations (Scopus)


We report on a gigahertz self-mode-locked high-order Hermite-Gaussian (HG) Nd:GdVO4 laser. With a pump power of 2.2 W, the average output power for the TEM0,m modes from m=9 to m=0 are among 350-780 mW at a repetition rate of 3.5 GHz. The mode-locked pulse width is in the range of 20-25 ps for various HG TEM0,m modes. With a simple cylindrical-lens converter, the mode-locked HG beams are converted to generate picosecond optical vortex pulses.

Original languageEnglish
Pages (from-to)3842-3844
Number of pages3
JournalOptics Letters
Issue number24
Publication statusPublished - 2009 Dec 15


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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