Polarization-Insensitive Four-Wave-Mixing-Based Wavelength Conversion in Few-Mode Optical Fibers
Polarization-Insensitive Four-Wave-Mixing-Based Wavelength Conversion in Few-Mode Optical Fibers
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DOI：
10.1109/jlt.2018.2834148
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发表时间：
2018-09
影响因子：
4.7
通讯作者：
Omar F. Anjum;M. Guasoni;P. Horák;Yongmin Jung;P. Petropoulos;D. Richardson;F. Parmigiani
中科院分区：
文献类型：
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作者：
Omar F. Anjum;M. Guasoni;P. Horák;Yongmin Jung;P. Petropoulos;D. Richardson;F. Parmigiani
报道了一种基于渐变折射率三模椭圆芯光纤模间相位匹配的波长转换器的理论和实验结果。在这里，两个共极化的泵浦波以一种空间模式传播，而信号和相应的产生的闲置波以另一种模式传播。我们证明了在1公里和50米长的光纤中，空闲功率与信号偏振无关。我们将这种偏振不敏感归因于所研究的光纤的快速随机双折射，并结合共振抽运结构。
We report theoretical and experimental results on a wavelength converter based on intermodal phase matching in a graded index three-mode elliptical-core fiber. Here, two copolarized pump waves propagate in one spatial mode, whereas a signal and the corresponding generated idler propagate in another mode. We demonstrate that the idler power is independent of the signal polarization in both a 1 km and a 50 m long fiber. We attribute this polarization insensitivity to the fast random birefringence of the fiber under investigation in combination with the copolarized pump configuration.