We have invented a quasi-Gaussian profile-transmittance filter based on radially varying the phase retardation in a birefringent element. The radial birefringent element has been applied to resonator design and has demonstrated its usefulness in generating an improved resonator spatial-mode profile.
© 1980 Optical Society of America
Original Manuscript: July 18, 1980
Published: November 1, 1980
G. Giuliani, Y. K. Park, and R. L. Byer, "Radial birefringent element and its application to laser resonator design," Opt. Lett. 5, 491-493 (1980)