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Asymmetrical prism for beam shaping of laser diode stacks

机译:用于激光二极管叠堆光束成形的非对称棱镜

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摘要

A beam-shaping scheme for a laser diode stack to obtain a flattop output intensity profile is proposed. The shaping element consists of an asymmetrical glass prism. The large divergence-angle compression in the direction perpendicular to the junction plane and the small divergence-angle expansion in the parallel direction are performed simultaneously by a single shaping element. The transformation characteristics are presented, and the optimization performance is investigated based on the ray-tracing method. Analysis shows that a flattop intensity profile can be obtained. This beam-shaping system can be fabricated easily and has a large alignment tolerance.
机译:提出了一种用于激光二极管堆叠以获得平坦输出强度分布的光束整形方案。成型元件由不对称的玻璃棱镜组成。通过单个成形元件同时执行在垂直于接合面的方向上的大发散角压缩和在平行方向上的小发散角膨胀。提出了变换特性,并基于光线跟踪方法研究了优化性能。分析表明可以获得平顶强度分布图。该光束整形系统可以容易地制造并且具有大的对准公差。

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