Beam quality enhancement for a radio-frequency excited annular CO2 laser

A. Lapucci*, M. Ciofini, S. Mascalchi, E. Di Fabrizio, M. Gentili

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


We report the preliminary experimental results obtained from an annular radio-frequency excited CO2 laser with a Talbot cavity and a phase correcting mirror external to the cavity. The Talbot cavity is adopted in order to reduce the number of oscillating azimuthal modes. The use of the external profile-modulated mirror is aimed at reducing the beam phase modulation and thus increasing the amount of fundamental annular mode energy content. The beam quality results to be sensibly increased.

Original languageEnglish (US)
Pages (from-to)2549-2551
Number of pages3
JournalApplied Physics Letters
Issue number18
StatePublished - 1998
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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