飞秒
放大器
材料科学
重复(修辞手法)
光学
栅栏
激光器
光电子学
功率(物理)
光放大器
物理
语言学
CMOS芯片
量子力学
哲学
作者
Geyang Wang,Chuan Bai,Li Zheng,Xuan Tian,Haijing Mai,Yu Yang,Wenlong Tian,Zhiyi Wei,Jiangfeng Zhu
出处
期刊:IEEE Photonics Technology Letters
[Institute of Electrical and Electronics Engineers]
日期:2023-02-15
卷期号:35 (4): 171-174
标识
DOI:10.1109/lpt.2022.3228866
摘要
In this letter, a Yb:CaGdAlO4 crystal-based femtosecond regenerative amplifier with a repetition rate of 1 MHz is demonstrated. The amplifier delivers an average output power of 21.8 W with an absorbed pump power of 47.8 W before compression. The slope efficiency and the optical-to-optical efficiency, measured with respect to the absorbed pump power, are 54.9% and 45.6%, respectively. Upon using a grating-pair for compression, 168-fs pulses with pulse energy of $20 ~\mu \text{J}$ and peak power of 105 MW are obtained. Benefiting from the good thermal management and the great optical-optical efficiency, the beam quality (M2) on both axes is less than 1.2.
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