In this letter, we present a novel slotted core fiber incorporating a slotted cladding for the terahertz band. The modal properties of the designed fiber are numerically investigated based on an efficient finite element method. Simulation results of the fiber exhibit both a low material absorption loss of 0.0103–0.0145 cm⁻¹ and low dispersion below 0.5 ps/THz/cm within the 0.5–0.9 THz range. In addition, a number of other features of the fiber have been evaluated.
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机译：在这封信中，我们介绍了一种新颖的开缝纤芯光纤，其中包含用于太赫兹频段的开缝包层。基于有效的有限元方法，对设计纤维的模态特性进行了数值研究。光纤的模拟结果显示出材料吸收损耗低至0.0103-0.0145 cm -1，在0.5-0.9 THz范围内低于0.5 ps / THz / cm时色散低。另外，已经评估了纤维的许多其他特征。
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