期刊
HIGH POWER LASER SCIENCE AND ENGINEERING
卷 11, 期 -, 页码 -出版社
CHINESE LASER PRESS & CAMBRIDGE UNIV PRESS
DOI: 10.1017/hpl.2023.70
关键词
femtosecond pulse; filamentation; nonlinear compression
类别
Nonlinear compression is an important technique for generating ultrafast pulses with high peak power and narrow pulse widths. This study reports a simple and stable nonlinear pulse compression technique, which achieves high efficiency through cascaded filamentation and dispersion compensation. The technique successfully compresses pulse widths from 160 fs to 32 fs, with only 2.4% energy loss.
Nonlinear compression has become an obligatory technique along with the development of ultrafast lasers in generating ultrashort pulses with narrow pulse widths and high peak power. In particular, techniques of nonlinear compression have experienced a rapid progress as ytterbium (Yb)-doped lasers with pulse widths in the range from hundreds of femtoseconds to a few picoseconds have become mainstream laser tools for both scientific and industrial applications. Here, we report a simple and stable nonlinear pulse compression technique with high efficiency through cascaded filamentation in air followed by dispersion compensation. Pulses at a center wavelength of 1040 nm with millijoule pulse energy and 160 fs pulse width from a high-power Yb:CaAlGdO4 regenerative amplifier are compressed to 32 fs, with only 2.4% loss from the filamentation process. The compressed pulse has a stable output power with a root-mean-square variation of 0.2% over 1 hour.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据