Zitelli Mario, Sun Yifan, Ferraro Mario, Mangini Fabio, Sidelnikov Oleg, Couderc Vincent, Wabnitz Stefan
Opt Express. 2022 Feb 14;30(4):6300-6310. doi: 10.1364/OE.446482.
We experimentally generate multimode solitons in step-index fibers, where nonlinearity compensates for both chromatic and modal dispersion. These solitons are subject to Raman self-frequency shift, and their energy is gradually transfered to the fundamental fiber mode. We compare multimode soliton dynamics in both step-index and graded index fibers, in excellent agreement with numerical predictions.
我们通过实验在阶跃折射率光纤中产生多模孤子，其中非线性效应补偿了色散和模式色散。这些孤子会经历拉曼自频移，其能量会逐渐转移到光纤的基模。我们比较了阶跃折射率光纤和渐变折射率光纤中的多模孤子动力学，与数值预测结果高度吻合。
