关键词: fast material processing high-power laser ultrafast laser fast material processing high-power laser ultrafast laser fast material processing high-power laser ultrafast laser

来  源:   DOI:10.1515/aot-2021-0045   PDF(Pubmed)

Abstract:
High average power femtosecond lasers have made spectacular progress in the last decades - moving from laboratory-based systems with maximum average powers of tens of watts to kilowatt-class mature industrial systems in a short time. The availability of such systems opens new possibilities in many fields; one of the most prominent ones that have driven many of these technological advances is precise high-speed material processing, where ultrashort pulses have long been recognized to provide highest precision processing of virtually any material, and high average power extends these capabilities to highest processing rates. Here, we focus our attention on one high-average power technology with large unexplored potential for this specific application: directly modelocked multi-MHz repetition frequency high-power thin-disk oscillators. We review their latest state-of-the-art and discuss future directions and challenges, specifically with this application field in mind.
摘要:
在过去的几十年中,高平均功率飞秒激光器取得了惊人的进步-在短时间内从基于实验室的最大平均功率为数十瓦的系统发展到千瓦级的成熟工业系统。这种系统的可用性在许多领域开辟了新的可能性;推动许多技术进步的最突出的因素之一是精确的高速材料加工,超短脉冲长期以来被认为可以对几乎任何材料提供最高精度的加工,和高平均功率将这些能力扩展到最高的处理速率。这里,我们将注意力集中在一种高平均功率技术上,该技术在此特定应用中具有巨大的未开发潜力:直接锁模多MHz重复频率高功率薄盘振荡器。我们回顾了他们最新的最新技术,并讨论了未来的方向和挑战,特别是考虑到这个应用领域。
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