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Theoretical and experimental studies of a multiline TEA CO2laser with hot CO2as an intracavity absorber

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2 Author(s)
Nath, A.K. ; Univ. of Alberta, Alta., Canada ; Chatterjee, U.

The multiline behavior of a ballast resistance helical TEA CO2laser incorporating hot CO2as an intracavity absorber has been studied. Simultaneous laser oscillation on P(16), P(18) , and P(20) lines of 10.6 μm has been obtained reliably. A rate equation model has been developed for the hot CO2absorber and is incorporated with the model for the multiline TEA CO2laser for calculating laser intensities on P(16), P(18), P(20) , and P(22) lines of the 10.6 μm band in the presence of the absorber. The theoretical calculations agree quite well with the experimental observations. These studies show that a hot CO2column of Proper length and temperature inside a TEA CO2laser cavity can produce simultaneous laser oscillation on at least three rotational lines P(16), P(18) , and P(20) of the 10.6 μm band with almost equal intensity.

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Quantum Electronics, IEEE Journal of  (Volume:16 ,  Issue: 11 )