Modsching Norbert, Paradis Clément, Labaye François, Gaponenko Maxim, Graumann Ivan J, Diebold Andreas, Emaury Florian, Wittwer Valentin J, Südmeyer Thomas
Opt Lett. 2018 Feb 15;43(4):879-882. doi: 10.1364/OL.43.000879.
We demonstrate the first Kerr lens mode-locked Yb:CaGdAlO (Yb:CALGO) thin-disk laser oscillator. It generates pulses with a duration of 30 fs at a central wavelength of 1048 nm and a repetition rate of 124 MHz. The laser emits the shortest pulses generated by a thin-disk laser oscillator, equal to the shortest pulse duration obtained by Yb-doped bulk oscillators. The average output power is currently limited to 150 mW by the low gain and limited disk quality. We expect that more suitable Yb:CALGO disks will enable substantially higher power levels with similar pulse durations.
我们展示了首个克尔透镜锁模Yb:CaGdAlO（Yb:CALGO）薄片激光器振荡器。它在中心波长1048nm处产生持续时间为30飞秒、重复频率为124MHz的脉冲。该激光器发射出薄片激光器振荡器产生的最短脉冲，与掺Yb体振荡器获得的最短脉冲持续时间相同。由于增益低和薄片质量有限，目前平均输出功率限制在150毫瓦。我们预计，更合适的Yb:CALGO薄片将能够在类似脉冲持续时间下实现更高得多的功率水平。
