Szczepanek Jan, Kardaś Tomasz M, Radzewicz Czesław, Stepanenko Yuriy
Opt Lett. 2020 Mar 15;45(6):1563-1566. doi: 10.1364/OL.384896.
We report the experimental study of spectral modulations induced by a stimulated Raman scattering process in an all-fiber all-normal dispersion oscillator. With the use of dispersive Fourier transform, we recorded a series of single-shot spectra of consecutive laser pulses. The data indicate that the Raman process destabilizes the long-wavelength part of the laser pulse spectrum without disrupting the single-pulse generation regime. Our experiments revealed also that the oscillator displayed bistable operation for high pump powers. Two stable dissipative soliton mode-locked states were observed, together with output power hysteresis.
我们报道了在全光纤全正色散振荡器中受激拉曼散射过程引起的光谱调制的实验研究。通过使用色散傅里叶变换，我们记录了一系列连续激光脉冲的单次光谱。数据表明，拉曼过程使激光脉冲光谱的长波长部分不稳定，而不会破坏单脉冲产生机制。我们的实验还表明，对于高泵浦功率，该振荡器呈现双稳态运行。观察到了两种稳定的耗散孤子锁模状态以及输出功率滞后现象。
