| 摘要 |
In an optical arrangement for pumping solid-state lasers, there is the object of producing an intensity distribution across the beam cross section of the pump radiation with a rectangular intensity profile, which intensity distribution is homogeneous at least in a region corresponding to the Rayleigh range in the direction of the beam propagation without the beam quality being substantially impaired by the homogenization. The pump arrangement contains a rod-shaped homogenizer (1) with two opposed, polished end faces (2,3), planar side limit faces (4), which are arranged parallel to the optical axis and with a cross-sectional area at right angles to the optical axis, which forms a regular polygon, with the regular polygon being restricted to those number of sides which permit a plurality of polygons to be positioned against one another on a surface in such a way that they fill the space.
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