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Due to the air holes in cladding, it is difficult to process for end faces of ytterbium-doped double-cladding microstructured optical fibers. In this paper, we demonstrate the fabricating method of microlenses on ytterbium-doped double-cladding microstructured optical fibers with a CO2 laser to enhance the coupling efficiency. The theoretical and experimental investigation is carried out to study...
In this paper, a novel dual-guided microstructured fiber supporting orbital angular momentum (OAM) mode and linear polarization (LP) mode transmission is proposed to solve the high-volume data transmission. A variety of parameters of the fiber are considered comprehensively under different conditions by using the full-vector finite element method. The results show that the fiber can support 30 OAM...
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