Abstract
An astigmatic and elliptically diverging laser beam generated by a gain-guided laser diode can be converted into a collimated and circular beam with a single specially designed lens. The designed lens also corrects for the astigmatism present in the laser diode. The input surface of the lens has a different concave and convex aspherical profile in the transverse and the longitudinal direction, respectively, for astigmatism correction. The output surface possesses a convex aspherical and a straight profile in the transverse and the longitudinal direction, respectively, for collimation and circularization of the final output laser beam.
© 2000 Optical Society of America
Full Article | PDF ArticleMore Like This
Mert Serkan and Hulya Kirkici
Appl. Opt. 47(2) 230-241 (2008)
Miroslav Miler, Ivo Koudela, and Ivo Aubrecht
Appl. Opt. 38(14) 3019-3024 (1999)
Mert Serkan, Hulya Kirkici, and Hakan Cetinkaya
Appl. Opt. 46(22) 5489-5499 (2007)