Design and performance evaluation of photonic crystal fibers of supporting orbital angular momentum states in optical transmission

被引：0
作者：
Kabir M.A. [1 ]
Hassan M.M. [1 ]
Hossain M.N. [1 ]
Paul B.K. [1 ,2 ,3 ]
Ahmed K. [1 ,2 ]
机构：
[1] Department of Information and Communication Technology, Mawlana Bhashani Science and Technology University, Santosh, Tangail
[2] Group of Bio-photomatix, Mawlana Bhashani Science and Technology University, Santosh, Tangail
[3] Department of Software Engineering, Daffodil International University, Sukrabad, Dhanmondi, Dhaka
来源：
Optics Communications | 2021年 / 467卷
关键词：
Effective refractive area; Finite element method (FEM); Optical communication; Orbital angular momentum (OAM); Perfectly matched layer (PML); Photonic crystal fiber (PCF); Refractive index (RI); Space division multiplexing (SDM);
D O I：
10.1016/j.optcom.2020.125731
中图分类号：
学科分类号：
摘要：
In this letter, two novel hollow-core photonic crystal fibers (PCFs) are proposed, simulated, and analyzed. The PCFs stably support Orbital Angular Momentum (OAM) transmission. These PCFs are theoretically and systematically investigated, discussed, and compared their properties, structures, and parameters. Besides, an effect of core size and pattern of air holes on OAM parameters is investigated with these two PCFs. The proposed PCFs support up to 38 OAM states with 1,200 nm bandwidth ranging from 800 nm to 2,000 nm with a large effective refractive index difference of above 10−4. The average confinement losses of these PCFs less than 10−7 dB/m, and the lowest dispersion variations are 3.7980 ps/nm/km and 4.7489 ps/nm/km. In addition, a low nonlinearity, flatten dispersion variation are obtained for these PCFs. Moreover, this type of optical fiber would be a strong candidate for stable transmissions, high capacity of optical fiber communications, and OAM sensing applications. © 2020 Elsevier B.V.
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