Spatio-Temporal Self-Focusing in Femtosecond Pulse Transmission Through Multimode Optical Fibers
Spatio-Temporal Self-Focusing in Femtosecond Pulse Transmission Through Multimode Optical Fibers
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DOI：
10.1109/jlt.2012.2206796
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发表时间：
2012-09
影响因子：
4.7
通讯作者：
G. Hesketh;F. Poletti;P. Horák
中科院分区：
文献类型：
--
作者：
G. Hesketh;F. Poletti;P. Horák
本文采用广义多模非线性Schrödinger方程方法，对发射峰值功率接近自聚焦临界功率的多模光纤中的超短脉冲传播进行了数值研究。非线性时空效应和光纤色散共同控制着脉冲在空间和时间上的压缩，从而导致损伤强度的高低。在这里，我们确定了避免损坏的脉冲参数，并且可以在光纤零色散波长附近通过光纤进行高功率传输。
We numerically investigate ultra-short pulse propagation in multimode optical fibers with launch peak powers approaching the critical power for self-focusing using a generalized multimode nonlinear Schrödinger equation approach. Nonlinear spatial and temporal effects combined with fiber dispersion govern pulse compression in space and time which can result in damage-inducing intensity levels. Here we identify pulse parameters for which damage is avoided and high-power delivery through optical fiber is possible near the fiber zero-dispersion wavelength.