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The ABCD law of parameter q for fundamental-mode Gaussian beam is deduced in this paper. The result shows that the changes of focal length and focal depth are not related to the orders of the Gaussian beam modes when focus lens moves along optical axis in a large range, indicating that the ABCD law of parameter q can be used for any order modes. A laser focusing setup is designed, and the response characteristics of oil pressure system therein are also studied. 相似文献
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The ABCD law of parameter q for fundamental-mode Gaussian beam is deduced in this paper. The result shows that the changes of focal length and focal depth are not related to the orders of the Gaussian beam modes when focus lens moves along optical axis in a large range, indicating that the ABCD law of parameter q can be used for any order modes. A laser focusing setup is designed, and the response characteristics of oil pressure system therein are also studied. 相似文献
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推导了用瑞利长度表示的TEMmn高斯光束成像变换ABCD定律,得到了飞行光束的聚焦特性.提出了应用自适应飞行光束聚焦系统来解决飞行光束聚焦特性的问题,详细分析了光束质量、聚焦焦斑、聚焦镜焦距、实际焦距与几何焦距之差的变化对自适应"飞行光束"聚焦系统调节性能的影响,实现了对焦点位置与焦斑大小的控制.(OG22) 相似文献
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光纤电压互感器的研究进展 总被引:1,自引:0,他引:1
概括介绍电压互感器特别是光纤电压互感器的基本原理及研究状况,着重讨论了光纤电压互感器在实际应用中存在的问题,今后的发展趋势及发展中需要解决的问题。 相似文献
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