Low-noise passive harmonically mode-locked Yb:CALCO laser oscillator
Low-noise passive harmonically mode-locked Yb:CALCO laser oscillator
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DOI：
10.1109/cleoe-eqec.2017.8086298
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发表时间：
2017-06
期刊：
影响因子：
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通讯作者：
Hauke Bensch;G. Herink;F. Kurtz;U. Morgner
中科院分区：
文献类型：
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作者：
Hauke Bensch;G. Herink;F. Kurtz;U. Morgner
固态体激光器的谐波锁模结合了长谐振腔与大脉冲能量和高重复频率的优点。利用这种技术，可以在不改变光学设置的情况下以不同的重复率操作系统。基本锁模振荡器的信噪比通常比谐波工作时好得多[1]。本文提出了一种基于SESAM的二极管抽运Yb：CALGO体振荡器。该系统以94 MHz的基本重复率提供飞秒脉冲。对于重复频率为188 MHz的二次谐波锁模和重复频率为282 MHz的三次谐波锁模，我们只需增加泵浦功率。在这两个操作点处，对于长期低信噪比操作，我们不需要主动稳定。
Harmonic mode-locking of a solid-state bulk laser combines the benefits of long resonators with large pulse energy and high repetition rates. With this technique it is possible to operate a system at different repetition rates without changing the optical setup. The signal to noise ratio of a fundamentally mode-locked oscillator is typically much better than in harmonic operation [1]. In this contribution we present a SESAM based solitary mode-locked diode pumped Yb:CALGO bulk oscillator. This system provides femtosecond pulses at a fundamental repetition rate of 94 MHz. For the second order harmonic mode-locking operation at the repetition rate of 188 MHz and the third harmonic at 282 MHz we have only to increase the pump power. At both operation points we need no active stabilization for a long term low signal to noise operation.