Abstract
A stable resonator with high-power annular output operating at the stable boundary was studied theoretically and experimentally. In a multi-kilowatt transverse flow CO2 laser with a large active volume,1 the construction of the resonator is shown in Fig. 1; 7-kW power output with very uniform near-field distribution and good beam quality was obtained. The divergence of the far field is 0.6 mrad (containing 80% of total laser energy). The photographs of the laser beam Plexiglas bum patterns for the near-field and far-field patterns are shown in Figs. 2(a) and (b), respectively.
© 1988 Optical Society of America
PDF ArticleMore Like This
Yushi Takenaka, Shigeto Takeshima, Junichi Nishimae, Masaki Kuzumoto, and Kenji Yoshizawa
ThB4 Conference on Lasers and Electro-Optics/Pacific Rim (CLEO/PR) 1995
TSUTOMU SHIMADA, IRVING J. BIGiO, NORMAN A. KURNIT, and ROBERT F. HARRISON
FD2 Conference on Lasers and Electro-Optics (CLEO:S&I) 1988
J. W. Bethel, A. D. Colley, H. J. Baker, and D. R. Hall
CTuI6 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 1996