Observation and analysis of single and multiple high-order Laguerre-Gaussian beams generated from a hemi-cylindrical cavity with general astigmatism

Ting-Hua Lu, Y. C. Wu

Research output: Contribution to journalArticle

12 Citations (Scopus)


We experimentally verified that anisotropic Hermite-Gaussian modes can be generated from a hemi-cylindrical laser cavity and can be transformed into high-order Laguerre-Gaussian modes using an extra-cavity cylindrical lens. We further combined the Huygens integral and the ABCD law to clearly demonstrate the transformation along the propagation direction. By controlling the pump offset and the pump size in hemicylindrical cavities, we experimentally observed the unique laser patterns that displayed the optical waves related to the coherent superposition of Laguerre-Gaussian modes.

Original languageEnglish
Pages (from-to)28496-28506
Number of pages11
JournalOptics Express
Issue number23
Publication statusPublished - 2013 Nov 18


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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