Optical pump concepts for highly efficient quasi-three-level lasers

Optical pump concepts for highly efficient quasi-three-level lasers
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高效准三能级激光器的光泵概念

DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
U. Wittrock
U. Wittrock
中科院分区：
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文献类型：
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作者：
K. Albers;U. Wittrock

文献摘要

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有效的准三能级激光器操作需要从给定的泵浦源产生尽可能高的泵浦速率。我们推导出泵速率的基本比例定律，并从这些定律中提取泵概念的优化标准。然后将分析应用于薄盘激光器。在此基础上，提出了一种新的薄片激光器泵浦方案，该方案允许几十次泵浦，降低了传统泵浦方案的光学复杂度。此外，几乎完全保持了泵浦源的光束质量，从而促进了最高可能的泵浦速率。
Efficient quasi-three-level laser operation requires the generation of the highest possible pump rate from a given pump source. We derive the fundamental scaling laws for the pump rate and we extract optimization criteria for pump concepts from these laws. The analysis is then applied to the thin-disk laser. Based on the results, a novel pump concept for thin-disk lasers is proposed, which allows for several tens of pump beam passes and reduces the optical complexity of conventional pump concepts. Furthermore, the beam quality of the pump source is preserved almost completely, facilitating the highest possible pump rate.