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arXiv 1809.09235physics.optics
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结构光泵浦光参量振荡的条件

Conditions for optical parametric oscillation with structured light pump

G. B. Alves, R. F. Barros, D. S. Tasca, C. E. R. Souza, A. Z. Khoury

摘要:

研究了结构泵浦驱动的II型光学参量振荡器(OPO)下转换光束的横模结构。我们的分析集中在非线性相互作用的三个领域的横向模式之间的空间重叠所施加的选择规则。这些规则意味着一个层次的振荡阈值,确定可能的横向模式产生的OPO,显着证实了实验结果。

英文摘要:

We investigate the transverse mode structure of the down-converted beams generated by a type-II optical parametric oscillator (OPO) driven by a structured pump. Our analysis focus on the selection rules imposed by the spatial overlap between the transverse modes of the three fields involved in the non-linear interaction. These rules imply a hierarchy of oscillation thresholds that determine the possible transverse modes generated by the OPO, as remarkably confirmed with experimental results.

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