Pawliszewska Maria, Dużyńska Anna, Zdrojek Mariusz, Sotor Jarosław
Opt Lett. 2020 Feb 15;45(4):956-959. doi: 10.1364/OL.383788.
We present a versatile ultrafast holmium-doped fiber laser with an intracavity Martinez compressor. The compressor enables continuous dispersion control, spectral filtering, and dual-color operation of the laser. Mode locking is supported for net cavity dispersion values ranging from highly anomalous (-1.42) to net normal (0.3), and wavelength tuning of the optical solitons is obtained in a 2021-2096 nm span. Dual-color pulsed operation of the laser is reached by implementing a mechanical bandstop filter within the compressor. The repetition rate offset of the two emitted frequency combs can be tuned in a 3-8 kHz range by adjusting the net cavity dispersion, or by changing the beam block diameter. We show that a relatively simple fiber resonator integrated with a Martinez compressor can serve as a highly tunable laser source.
我们展示了一种带有腔内马丁内兹压缩器的多功能超快掺钬光纤激光器。该压缩器能够实现激光的连续色散控制、光谱滤波和双色运行。对于从高度反常（-1.42）到净正常（0.3）的净腔色散值，支持锁模，并且在2021 - 2096 nm范围内获得了光孤子的波长调谐。通过在压缩器内安装一个机械带阻滤波器，实现了激光器的双色脉冲运行。通过调整净腔色散或改变光束阻挡直径，可以在3 - 8 kHz范围内调谐两个发射频率梳的重复频率偏移。我们表明，一个与马丁内兹压缩器集成的相对简单的光纤谐振器可以作为一个高度可调谐的激光源。
