A new class of tapered reflectivity mirrors with a super-Gaussian profile R ∝ exp(−krn) is introduced, and a geometrical-optics approach for analysis and design of unstable resonators made with these mirrors is presented. A super-Gaussian mirror, built by a special evaporation technique, has been tested in an unstable resonator of a pulsed Nd:YAG laser, demonstrating its effectiveness in generating diffraction-limited beams.
© 1988 Optical Society of America
Original Manuscript: July 29, 1987
Manuscript Accepted: December 1, 1987
Published: March 1, 1988
S. De Silvestri, B. Majocchi, P. Laporta, V. Magni, and O. Svelto, "Unstable laser resonators with super-Gaussian mirrors," Opt. Lett. 13, 201-203 (1988)