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Gasdynamic lasers

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1 Author(s)
Edward T. Gerry ; Avco Everett Research Laboratory

It is not enough to depend upon diffusivity to dissipate the heat from a gas laser. Under the circumstances, average power outputs are too limited. By generating flow within the gas and deriving the benefits of forced convection, performance is improved. But if flow can be used to improve power outputs, it also can be used to advance a step further and generate the conditions that are necessary for lasing action¿thereby creating a gasdynamic laser. This article covers the theory behind such a device and describes an experimental unit that has proved the merit of the concept.

Published in:

IEEE Spectrum  (Volume:7 ,  Issue: 11 )