Łaszczych Zbigniew, Soboń Grzegorz
Opt Express. 2021 Jan 18;29(2):2690-2702. doi: 10.1364/OE.416107.
We report an investigation of dispersion management of an all-polarization-maintaining Er-fiber oscillator mode-locked via a nonlinear amplification loop mirror in a figure-nine cavity configuration with two output ports. The performance of the laser was investigated within the net cavity dispersion ranging from -0.034 ps to +0.006 ps. We show that the spectral and temporal phase of the pulses at both figure-nine outputs have clearly different characteristics. One of the laser outputs provides pulses with significantly better quality; nonetheless, the rejection output also offers ultrashort pulses with broad spectra. Pulses as short as 79 fs with an energy of 83 pJ were generated directly from the laser in the near-zero dispersion regime.
我们报告了一项关于全保偏掺铒光纤振荡器色散管理的研究，该振荡器通过非线性放大环镜在具有两个输出端口的数字九腔配置中实现锁模。在净腔色散范围从 -0.034 ps 到 +0.006 ps 内对激光器的性能进行了研究。我们表明，数字九腔两个输出端的脉冲光谱和时间相位具有明显不同的特性。其中一个激光输出提供质量明显更好的脉冲；尽管如此，抑制输出也能提供具有宽光谱的超短脉冲。在近零色散 regime 下，该激光器直接产生了能量为 83 pJ、脉宽短至 79 fs 的脉冲。
