Applied Physics B

, Volume 29, Issue 2, pp 67–72 | Cite as

Mode selection in an unstable-resonator TEA CO2 laser by injection from a waveguide laser

  • N. R. Heckenberg
  • B. J. Renton
  • S. T. Shanahan
  • W. Wright
Contributed Papers
Received:
Accepted:

Abstract

The effect of injecting radiation from a cw waveguide CO2 laser into a TEA laser through a hole in one mirror of its unstable resonator has been studied experimentally. High-power single longitudinal mode operation of the TEA laser is achieved over a wide but finite range of injection frequencies, the frequency of the single-mode pulse being that of the TEA laser cavity mode lying closest to the injected frequency. Although a simple theoretical model shows good qualitative agreement with observations it underestimates the range of injection frequencies which result in single-mode pulses unless a fast chirping of the cavity mode frequency is postulated.

PACS

42.55D 42.60 B 
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Copyright information

© Springer-Verlag 1982

Authors and Affiliations

  • N. R. Heckenberg
    • 1
  • B. J. Renton
    • 1
  • S. T. Shanahan
    • 1
  • W. Wright
    • 1
  1. 1.Physics DepartmentUniversity of QueenslandSt. LuciaAustralia

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