Fermi and intramode relaxation phenomena in CO2lasers

Rudy A. Rooth, Jacob A. van der Pol, Eltjo H. Haselhoff, W.J. Witteman

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Using a 1 ns pulse from a short-pulse CO2laser system, the evolution of the gain in a TEA system was studied during and after amplification. This resulted in a very direct observation of a few relaxation processes. We estimated the effective intramode relaxation rate constant to be larger than6 times 10^{6}torr-1/s. The Fermi relaxation time constant was found to be 30 ± 7 ns at 760 torr. We conclude that for nanosecond pulse amplification, intramode relaxation cannot be neglected.
Original languageUndefined
Pages (from-to)1372-1377
JournalIEEE journal of quantum electronics
Issue number8
Publication statusPublished - 1987


  • IR-55630

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