具有大于450千瓦峰值功率的量子点可饱和吸收体和克尔透镜锁模Yb:KGW激光器。

Quantum-dot saturable absorber and Kerr-lens mode-locked Yb:KGW laser with >450 kW of peak power.

作者信息

Akbari R, Zhao H, Fedorova K A, Rafailov E U, Major A

出版信息

Opt Lett. 2016 Aug 15;41(16):3771-4. doi: 10.1364/OL.41.003771.

DOI:10.1364/OL.41.003771

PMID:27519085

Abstract

The hybrid action of quantum-dot saturable absorber and Kerr-lens mode locking in a diode-pumped Yb:KGW laser was demonstrated. Using a quantum-dot saturable absorber with a 0.7% (0.5%) modulation depth, the mode-locked laser delivered 90 fs (93 fs) pulses with 3.2 W (2.9 W) of average power at the repetition rate of 77 MHz, corresponding to 462 kW (406 kW) of peak power and 41 nJ (38 nJ) of pulse energy. To the best of our knowledge, this represents the highest average and peak powers generated to date from quantum-dot saturable absorber-based mode-locked lasers.

摘要

在二极管泵浦的Yb:KGW激光器中，演示了量子点可饱和吸收体与克尔透镜锁模的混合作用。使用调制深度为0.7%（0.5%）的量子点可饱和吸收体，锁模激光器在77 MHz的重复频率下输出90 fs（93 fs）的脉冲，平均功率为3.2 W（2.9 W），对应峰值功率为462 kW（406 kW），脉冲能量为41 nJ（38 nJ）。据我们所知，这代表了迄今为止基于量子点可饱和吸收体的锁模激光器产生的最高平均功率和峰值功率。