功率可扩展飞秒薄盘Yb:YAG激光器

Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505) Pub Date : 2000-09-10 DOI:10.1109/CLEOE.2000.909662

R. Paschotta, C. Spuhler, J. Aus der Au, Keller, M. Moser, S. Erhard, M. Karszewski, A. Giesen

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引用次数: 0

摘要

我们提出了一个新的概念，允许建立飞秒激光器具有非常高的平均输出功率。它是基于薄盘Yb:YAG激光器，被动锁模与半导体可饱和吸收镜(SESAM)。在第一步中，我们获得了近变换限制孤子脉冲的平均功率为16 W，持续时间为730 fs，能量为0.47 /spl mu/J，峰值功率为560 kW，光束质量近衍射限制。没有观察到SESAM的损坏，并且在全输出功率下抑制了q开关不稳定性。据我们所知，16瓦的平均功率是迄今为止报道的亚皮秒级激光振荡器的最高功率，我们正在努力实现更高的功率。

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Power-scalable femtosecond thin disk Yb:YAG lasers

We present a new concept which allows to build femtosecond lasers with very high average output powers. It is based on a thin disk Yb:YAG laser, passively mode-locked with a semiconductor saturable absorber mirror (SESAM). In a first step, we obtained 16 W of average power in near transform-limited soliton pulses with 730 fs duration, 0.47 /spl mu/J energy, 560 kW peak power, and near diffraction-limited beam quality. Damage of the SESAM is not observed, and Q-switching instabilities are suppressed at full output power. The average power of 16 W is to our knowledge by far the highest reported for a laser oscillator in the subpicosecond regime, and we are working towards even significantly higher powers.

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Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505)

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