Ultrafast-pulse self-phase modulation and third-order dispersion in Si photonic wire-waveguides
Ultrafast-pulse self-phase modulation and third-order dispersion in Si photonic wire-waveguides
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DOI：
10.1364/oe.14.012380
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发表时间：
2006-12-11
期刊：
影响因子：
3.8
通讯作者：
Vlasov, Yurii A.
中科院分区：
文献类型：
--
作者：
Hsieh, I-Wei;Chen, Xiaogang;Vlasov, Yurii A.
通过在具有反常色散的亚微米横截面Si光子线波导内传播飞秒脉冲，我们证明了脉冲传播动力学受到光学非线性和高达三阶色散的组合作用的强烈影响，具有最小的载流子效应。由于强的光限制，由于自相位调制的几个π的非线性相移被观察到在脉冲峰值功率仅为250 mW。我们还观察到孤子发射的辐射，完全支持的理论分析，从中我们直接确定的三阶色散系数，β（3）=-0.73 +/-0.05 ps（3）/m在1537 nm。(c)2006年美国光学学会。
By propagating femtosecond pulses inside submicron-crosssection Si photonic-wire waveguides with anomalous dispersion, we demonstrate that the pulse-propagation dynamics is strongly influenced by the combined action of optical nonlinearity and up to third-order dispersion with minimal carrier effects. Because of strong light confinement, a nonlinear phase shift of a few pi due to self-phase modulation is observed at a pulse peak-power of just similar to 250 mW. We also observe soliton-emitted radiation, fully supported by theoretical analysis, from which we determine directly the third-order dispersion coefficient, beta(3) = - 0.73 +/- 0.05 ps(3)/m at 1537 nm. (c) 2006 Optical Society of America.