Investigation of the effects of bromine and hydrogen bromide additives on copper vapour laser performance

M. J. Withford*, D. J. W. Brown, R. J. Carman, J. A. Piper

*Corresponding author for this work

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

We report on a detailed study of the effects of bromine and hydrogen bromide buffer-gas additive on the electrical and lasing characteristics of a conventional, high-temperature copper vapour laser. At standard buffer gas flow rates HBr-Ne mixtures produced relatively small improvements in output power, however, larger increases in output power were observed at elevated HBr-Ne flow rates. Added HBr also significantly modifies the spatio-temporal characteristics of laser output, increasing the pulse duration by a factor of 2 while also improving the radial intensity profile. This result has important implications for improving the extraction of high beam quality output from devices employing high magnification unstable resonators.

Original languageEnglish
Pages (from-to)164-170
Number of pages7
JournalOptics Communications
Volume135
Issue number1-3
DOIs
Publication statusPublished - 1 Feb 1997

Keywords

  • buffer gas additives
  • copper vapour laser
  • flow-rate
  • HBr
  • hydrogen
  • output power

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