Abstract
The performance of a dye-switched, 15 cm × 0.95 cm ruby laser, pumped by two linear flashlamps, in a polished, double elliptical cavity is reported. The <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">Q</tex> -switched output energy is examined under the step function <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">Q</tex> -switch model. It is noted that the <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">Q</tex> -switched output energy shows a linear dependence on the flashlamp input energy, at variance with the step function <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">Q</tex> -switch theory, for a uniformly pumped laser. This anomaly is explained on the basis of non-uniform pumping. The energy ultilization factor using this theory is also reported.
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