Zhou Xiangyu, Yoshitomi Dai, Kobayashi Yohei, Torizuka Kenji
National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan.
Opt Express. 2008 May 12;16(10):7055-9. doi: 10.1364/oe.16.007055.
An ultrashort-pulse, mode-locked ytterbium-doped fiber laser has been developed. The group-delay dispersion was compensated with a grating pair inside the cavity. A broad spectrum from 1000-nm to 1120-nm was obtained without intracavity compensation of third-order dispersion. A 0.7-nJ pulse as short as 28.3 fs was obtained with a repetition rate of 80 MHz. To our knowledge, this is the shortest pulse reported from an Yb fiber laser oscillator.
一种超短脉冲锁模掺镱光纤激光器已被研制出来。通过腔内的一对光栅对群延迟色散进行了补偿。在没有对三阶色散进行腔内补偿的情况下，获得了1000纳米至1120纳米的宽光谱。以80兆赫兹的重复频率获得了脉宽短至28.3飞秒、能量为0.7纳焦的脉冲。据我们所知，这是掺镱光纤激光振荡器所报道的最短脉冲。
