González-Baquedano N, Torres-Gómez I, Arzate N, Ferrando A, Ceballos-Herrera D E
Centro de Investigaciones en Óptica A.C., Loma del Bosque 115, Lomas del Campestre, 37150, León, Guanajuato, México.
Opt Express. 2013 Apr 8;21(7):9132-43. doi: 10.1364/OE.21.009132.
A numerical investigation of low-order soliton evolution in a proposed seven-cell hollow-core photonic bandgap fiber is reported. In the numerical simulation, we analyze the pulse quality evolution in soliton pulse compression and soliton self-frequency shift in three fiber structures with different cross-section sizes. In the simulation, we consider unchirped soliton pulses (of 400 fs) at the wavelength of 1060 nm. Our numerical results show that the seven-cell hollow-core photonic crystal fiber, with a cross-section size reduction of 2%, promotes the pulse quality on the soliton pulse compression and soliton self-frequency shift. For an input soliton pulse of order 3 (which corresponds to an energy of 1.69 μJ), the pulse gets compressed with a factor of up to 5.5 and a quality factor of 0.73, in a distance of 12 cm. It also experiences a soliton-self frequency shift of up to 28 nm, in a propagation length of 6 m, with a pulse shape quality of ≈ 0.80.
报道了对一种提议的七芯空芯光子带隙光纤中低阶孤子演化的数值研究。在数值模拟中，我们分析了三种具有不同横截面尺寸的光纤结构中孤子脉冲压缩和孤子自频移过程中的脉冲质量演化。在模拟中，我们考虑波长为1060nm的无啁啾孤子脉冲（400fs）。我们的数值结果表明，横截面尺寸减小2%的七芯空芯光子晶体光纤，在孤子脉冲压缩和孤子自频移方面提升了脉冲质量。对于三阶输入孤子脉冲（对应能量为1.69μJ），在12cm的距离内，脉冲压缩因子高达5.5，品质因数为0.73。在6m的传播长度内，它还经历了高达28nm的孤子自频移，脉冲形状品质约为0.80。
