Chalcogenide All-solid Hybrid Microstructured Optical Fiber with Flattened Normal Dispersion and High Birefringence in the mid-IR Region
Chalcogenide All-solid Hybrid Microstructured Optical Fiber with Flattened Normal Dispersion and High Birefringence in the mid-IR Region
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DOI：
10.5220/0009804500930098
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
T. Tuan;H. Nguyen;Takenobu Suzuki;Y. Ohishi
中科院分区：
文献类型：
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作者：
T. Tuan;H. Nguyen;Takenobu Suzuki;Y. Ohishi
在这项工作中，我们提出了一种新型的硫系混合微结构光纤，它具有全固态结构，在很宽的波长范围内实现了平坦化的正常色散分布，这对于在中红外窗口产生高相干和宽带超连续谱具有重要意义。计算结果表明，在平坦度为4ps/km-nm的情况下，可获得4.5~13µm的正常色散区。此外，还研究了该光纤的双折射特性。破坏光纤结构的对称性，增大纤芯和包层固体棒之间的折射率差，可以使位相双折射达到10-3量级。
: We propose in this work a new chalcogenide hybrid microstructured optical fiber with all-solid structure to realize a flattened normal chromatic dispersion profile in a broad wavelength range which is important for highly coherent and broad bandwidth supercontinuum generation in the mid-infrared window. The calculated results show that the normal dispersion regime can be obtained from 4.5 to 13 µm with the flatness of 4 ps/km-nm. In addition, the birefringence properties of the proposed fiber are investigated. The effects of breaking the symmetry of the fiber structure and increasing the refractive index difference between the core and the cladding solid rods can make the phase birefringence reach the values of the order of 10 -3 .