Laser resonator configurations, which enable laser operation with two orthogonally polarized transverse modes, are presented. The intensity distributions of these two modes can be chosen to be complementary, so the gain medium can be exploited more efficiently than with a single mode, leading to improved output power. Moreover, the two modes can be combined and efficiently transformed into a single high-quality beam. Basic principles and experimental results with Nd:YAG lasers are presented.
© 2002 Optical Society of America
(140.3300) Lasers and laser optics : Laser beam shaping
(140.3410) Lasers and laser optics : Laser resonators
(140.3570) Lasers and laser optics : Lasers, single-mode
(260.5430) Physical optics : Polarization
Ram Oron, Liran Shimshi, Shmuel Blit, Nir Davidson, Asher A. Friesem, and Erez Hasman, "Laser Operation with Two Orthogonally Polarized Transverse Modes," Appl. Opt. 41, 3634-3637 (2002)