Abstract
For fiber coupling and end-pumping of solid-state lasers, the astigmatic beam emitted from high power diode lasers has to be transformed into a beam with rotational symmetry. In this paper we present the result of beam transformation of a high power laser diode stack. The transformation optics consists of rotated cylindrical lenses, originally used in generating twisted beams from coherent and partially coherent fields. The astigmatic beam emitted from a 500 W two-dimensional laser diode stack is transformed into a rotationally symmetric beam. The symmetrized beam has equal beam widths, equal beam divergences in x, y-directions and the same waist positions.
| Original language | English |
|---|---|
| Pages (from-to) | 262-266 |
| Number of pages | 5 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 3862 |
| Publication status | Published - 1999 |
| Event | Proceedings of the 1999 International Conference on Industrial Lasers (IL '99) - Wuhan, China Duration: 22 Oct 1999 → 27 Oct 1999 |
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Gao, C., Laabs, H., Kugler, N., & Weber, H. (1999). Beam transformation of 500W laser diode system. Proceedings of SPIE - The International Society for Optical Engineering, 3862, 262-266.