光学
飞秒
镜头(地质)
模式锁定
脉冲持续时间
材料科学
功率(物理)
激光器
物理
量子力学
作者
Wenlong Tian,Xuan Tian,Qian Li,Geyang Wang,Chuan Bai,Yu Yang,Xiaodong Xu,Jun Xu,Zhiyi Wei,Jiangfeng Zhu
出处
期刊:Optics Letters
[Optica Publishing Group]
日期:2023-09-08
卷期号:48 (18): 4789-4789
被引量:5
摘要
We report on the demonstration of a pure Kerr-lens mode-locked Yb:CALYO laser which can directly deliver sub-200 fs pulses with more than 20-W average power. With an incident pump power of 89 W, 153-fs pulses were generated with an average power of 21.5 W at a repetition rate of 77.9 MHz. The corresponding peak power and single pulse energy were 1.6 MW and 0.27 µJ, respectively. The stable operation of the mode-locking was confirmed by very small fluctuations in both spectrum and output power recorded over an hour. Second harmonic generation (SHG) was conducted with 59% conversion efficiency, which indicated that the high-power mode-locking pulses are of good quality. Stable Kerr-lens mode-locking (KLM) with 156-fs pulse duration and 27.2-W average power was also achieved with 109-W pump power. To the best of our knowledge, this is the highest average output power ever reported from a femtosecond mode-locked bulk oscillator.
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