Laser and Particle Beams

Research Article

A simple kinetic model for electron-beam-pumped KrF lasers

E. C. Harveya1* and M. J. Shawa1

a1 Rutherford Appleton Laboratory, Chilton, Didcot, Oxon 0X11 OQX United Kingdom

Abstract

A kinetic model for KrF is presented that, by neglecting all but the most important kinetic processes, adequately describes the performance of electron-beam-pumped KrF lasers by a few, simple analytical expressions. The expression for the saturation intensity as a function of pump rate and gas composition is checked by measurements of gain saturation in both argon-rich and krypton-rich laser mixtures. The effects of fluorine burn-up are considered and are shown to impose a fundamental relationship between output fluence and efficiency of KrF laser amplifiers.

(Received February 15 1990)

Footnotes

* Present address: Exitech Ltd., Hanborough Business Park, Long Hanborough, Oxford OX7 2LH, United Kingdom.

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