The TEA CO2-Lasers with High Output Emission Intensity

Yu N. Panchenko, V. F. Losev, A. V. Puchikin, Yao Jun

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Abstract

TEA CO2-lasers generating short pulse radiation and operating in a pulse-periodic mode with the repetition rate up to 10 Hz have been developed. It is shown that the addition of nitrogen up to 8% in the mixture of molecular gases CO2:H2 = 500:50 at a total pressure of P = 0.6 bar enhances the peak emission power maintaining the temporary pulse shape. An output beam intensity of 12.3 MW/cm2 was obtained for the 30 ns pulse at a laser efficiency of 2.8%. In a compact TEA CO2-laser with an active medium volume of 6 cm3, a beam with an output intensity of 24 MW/cm2 at pulse duration of 70 ns was obtained.

Original languageEnglish
Pages (from-to)1246-1249
Number of pages4
JournalRussian Physics Journal
Volume56
Issue number11
DOIs
Publication statusPublished - 2014

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Keywords

  • emission intensity
  • laser efficiency
  • resonator
  • short pulse

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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