We report an ultrabroadband supercontinuum (SC) generation with high coherence property in all-normal-dispersion (ANDi) Te-based chalcogenide all-solid microstructured optical fiber (AS-MOF). The fiber was fabricated using a rod-in-tube method that presents four ${{\rm As}_2}{{\rm S}_3}$ glass rods selected as low refractive index material ($n = {2.4}$) embedded in a ${{\rm Ge}_{20}}{{\rm As}_{20}}{{\rm Se}_{20}}{{\rm Te}_{40}}$ glass matrix ($n = {3.1}$). The highly symmetrical four-hole MOF preform was fabricated through the computerized numerical control precision mechanical drilling method. By engineering the structure of the fiber, we determined an ANDi characteristic in the range of 2–13.5 µm when the core diameter of the fiber was $ \le\!{10\,\,\unicode{x00B5}{\rm m}}$. Under pumping at 5 µm, a highly coherent SC generation in the range of 2–13.2 µm was generated in a 16-cm-long AS-MOF with core diameter of 9.8 µm.

中文翻译：

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全正态色散Te基硫族化物全固态微结构光纤的超宽带和相干中红外超连续谱生成

我们报告了在全正态色散（ANDi）Te基硫族化物全固态微结构光纤（AS-MOF）中具有高相干性的超宽带超连续谱（SC）生成。光纤是通过管中棒法制造的，该方法具有四个被选作低折射率材料的$ {{\ rm As} _2} {{\ rm S} _3} $玻璃棒（$ n = {2.4} $）嵌入在$ {{\ RM葛} _ {20}} {{\ RM作为} _ {20}} {{\ RM硒} _ {20}} {{\ RM碲} _ {40}} $玻璃矩阵（$ n = {3.1} $）。通过计算机数控精密机械钻孔方法制造了高度对称的四孔MOF预制件。通过设计光纤的结构，我们确定了当纤芯直径为$ \ le \！{10 \，\，\ unicode {x00B5} {\ rm m}时，ANDi特性在2-13.5 µm的范围内。} $。在5 µm的泵浦下，在芯直径为9.8 µm的16厘米长的AS-MOF中产生了2–13.2 µm的高度相干SC。