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In this paper we propose and demonstrate a novel all-fiber fused-type mode selective coupler (MSC) that capable of converting LP01 mode to LP11 mode with high efficiency and purity. Unlike other coupler fabrication techniques for which single mode fiber (or few mode fiber) must be pre-tapered, the advantage of our proposed coupler is that pre-tapering is not required. Two different fibers of the MSC...
A terahertz (THz) polarization splitter based on asymmetric dual slotted core polymer fiber is proposed and numerically investigated. The dual slotted core composed of subwavelength-scale air slots that are independently suspended within the fiber, not only allows for single-mode propagation for the two orthogonal polarization modes with low absorption losses, but also enables them to couple with...
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