The propagation and focusing properties of a class of Gaussian beams generated by optical resonators with Gaussian reflectivity mirrors are investigated. Attention is concentrated on the following two beams in this class: (a) the annular Gaussian beam (the Gaussian doughnut mode) and (b) the flat-topped Gaussian beam. A class of flat-topped Gaussian beams is introduced. All analysis is limited to a coherent superposition scheme of the lowest-order Gaussian modes (TEM<sub>00</sub>) that have different parameters.
© 2002 Optical Society of America
(140.3300) Lasers and laser optics : Laser beam shaping
(140.4780) Lasers and laser optics : Optical resonators
(220.2560) Optical design and fabrication : Propagating methods
(260.1960) Physical optics : Diffraction theory
(350.5500) Other areas of optics : Propagation
Yajun Li, "Propagation and focusing of Gaussian beams generated by Gaussian mirror resonators," J. Opt. Soc. Am. A 19, 1832-1843 (2002)