Abstract
We report what we believe to be the first application of
diffractive phase elements for transverse mode selection in laser ring
resonators. We show that this resonator type offers several
advantages over Fabry–Pérot resonators with diffractive
mirrors. The design for a regenerative ring resonator that produces
an eighth-order super-Gaussian intensity profile beam is
presented. Numerical simulations, including modeling of the gain
saturation and experimental tests, have been carried out to demonstrate
the performance of this approach for cw and pulsed
operations.
© 1999 Optical Society of America
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