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首页> 外文会议>Frontiers in ultrafast optics: biomedical, scientific, and industrial applications XVII >Analysis of ultrafast material processing using flexible beam delivery
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Analysis of ultrafast material processing using flexible beam delivery

机译：使用柔性束传输分析超快材料

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Flexible beam delivery can significantly simplify the necessary effort to connect a laser source to an application. While already a standard in high power cw-applications, ultrashort pulse applications in the ps to fs regime mainly relies on free space beam delivery to date. In the last years we have introduced and characterized a modular beam delivery system for ultrashort high energy pulses [1]. It is based on micro structured hollow core fibers that confine the light into a hollow core and thereby allow pulse delivery way above the damage threshold of silica with minimal influence on the pulse. Ultrafast pulses with pulse energies of several 100 μJ and average powers of several 100 W can be transmitted with high single mode beam quality. Additionally, nonlinear effects inside the fiber can be actively used to adjust pulse parameters on the fly, e.g. an effective pulse compression which increases the peak power even further. Here we show the analysis of short pulse material processing using the flexible beam delivery. Results for sensitive processes as well as the active use of nonlinear spectral broadening are shown.
机译：灵活的光束传输可以大大简化将激光源连接到应用程序的必要工作。虽然已经成为高功率连续波应用的标准，但迄今为止，ps至fs制程中的超短脉冲应用主要依靠自由空间光束传输。在过去的几年中，我们已经引入并描述了用于超短高能脉冲的模块化光束传输系统[1]。它基于微结构化的中空芯纤维，该纤维将光限制在中空芯中，从而允许脉冲传输方式超过二氧化硅的破坏阈值，并且对脉冲的影响最小。可以以高单模光束质量传输脉冲能量为几百μJ，平均功率为几百W的超快脉冲。另外，光纤内部的非线性效应可被有效地用于动态调整脉冲参数，例如，有效的脉冲压缩可进一步增加峰值功率。在这里，我们显示了使用柔性束传输进行短脉冲材料处理的分析。显示了敏感过程的结果以及积极使用非线性光谱展宽的结果。

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