Hollow Ring-Core Photonic Crystal Fiber With >500 OAM Modes Over 360-nm Communications Bandwidth
We propose and design a hollow As<sub>2</sub>S<sub>3</sub> ring-core photonic crystal fiber (PCF) with 514 radially fundamental orbital angular momentum (OAM) modes over 360 nm communications bandwidth across all the O, E, S, C, and L bands. The designed PCF with 40 <inlin...
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doaj-113ca89d71e84f5a913406da504ab6c32021-05-27T23:03:08ZengIEEEIEEE Access2169-35362021-01-019669996700510.1109/ACCESS.2021.30764909419037Hollow Ring-Core Photonic Crystal Fiber With >500 OAM Modes Over 360-nm Communications BandwidthYingning Wang0https://orcid.org/0000-0001-7876-5722Yao Lu1Changjing Bao2Wenpu Geng3https://orcid.org/0000-0002-0989-5918Yuxi Fang4https://orcid.org/0000-0003-1736-484XBaiwei Mao5https://orcid.org/0000-0002-4039-2489Zhi Wang6https://orcid.org/0000-0002-0293-4099Yan-Ge Liu7https://orcid.org/0000-0002-8181-4924Hao Huang8Yongxiong Ren9https://orcid.org/0000-0002-8291-883XZhongqi Pan10Yang Yue11https://orcid.org/0000-0002-6457-0120Institute of Modern Optics, Nankai University, Tianjin, ChinaInstitute of Modern Optics, Nankai University, Tianjin, ChinaDepartment of Electrical Engineering, University of Southern California, Los Angeles, CA, USAInstitute of Modern Optics, Nankai University, Tianjin, ChinaInstitute of Modern Optics, Nankai University, Tianjin, ChinaInstitute of Modern Optics, Nankai University, Tianjin, ChinaInstitute of Modern Optics, Nankai University, Tianjin, ChinaInstitute of Modern Optics, Nankai University, Tianjin, ChinaDepartment of Electrical Engineering, University of Southern California, Los Angeles, CA, USADepartment of Electrical Engineering, University of Southern California, Los Angeles, CA, USADepartment of Electrical and Computer Engineering, University of Louisiana at Lafayette, Lafayette, LA, USAInstitute of Modern Optics, Nankai University, Tianjin, ChinaWe propose and design a hollow As<sub>2</sub>S<sub>3</sub> ring-core photonic crystal fiber (PCF) with 514 radially fundamental orbital angular momentum (OAM) modes over 360 nm communications bandwidth across all the O, E, S, C, and L bands. The designed PCF with 40 <inline-formula> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula>-radius air core and 150 nm-width As<sub>2</sub>S<sub>3</sub> ring can support eigenmodes up to HE<sub>130,1</sub> and EH<sub>128,1</sub>. The numerical analysis shows that the designed ring PCF has large effective refractive index contrast, and can transmit up to 874 OAM modes near 1.55 <inline-formula> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula>. Simulation results show that in the C and L bands, the PCF with a hollow-core radius of 40 <inline-formula> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula> and a ring width of 0.15 <inline-formula> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula> can retain an <inline-formula> <tex-math notation="LaTeX">$2.5\times 10 ^{-3}$ </tex-math></inline-formula> effective refractive index difference between the two highest order OAM modes, which achieves effective mode separation, thereby achieving stable OAM mode transmission. The <inline-formula> <tex-math notation="LaTeX">$n_{eff}$ </tex-math></inline-formula> difference between the even and odd fiber eigenmodes and the intra-mode walk-off are also carefully studied under different bending radii. The results show that higher-order OAM modes has better tolerance to the fiber bending, compared with the lower-order modes. The fiber has the potential to support ultra-high capacity OAM mode division multiplexing in the optical fiber communication systems.https://ieeexplore.ieee.org/document/9419037/Orbital angular momentumfiber opticsmode division multiplexingphotonic crystal fiber |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yingning Wang Yao Lu Changjing Bao Wenpu Geng Yuxi Fang Baiwei Mao Zhi Wang Yan-Ge Liu Hao Huang Yongxiong Ren Zhongqi Pan Yang Yue |
spellingShingle |
Yingning Wang Yao Lu Changjing Bao Wenpu Geng Yuxi Fang Baiwei Mao Zhi Wang Yan-Ge Liu Hao Huang Yongxiong Ren Zhongqi Pan Yang Yue Hollow Ring-Core Photonic Crystal Fiber With >500 OAM Modes Over 360-nm Communications Bandwidth IEEE Access Orbital angular momentum fiber optics mode division multiplexing photonic crystal fiber |
author_facet |
Yingning Wang Yao Lu Changjing Bao Wenpu Geng Yuxi Fang Baiwei Mao Zhi Wang Yan-Ge Liu Hao Huang Yongxiong Ren Zhongqi Pan Yang Yue |
author_sort |
Yingning Wang |
title |
Hollow Ring-Core Photonic Crystal Fiber With >500 OAM Modes Over 360-nm Communications Bandwidth |
title_short |
Hollow Ring-Core Photonic Crystal Fiber With >500 OAM Modes Over 360-nm Communications Bandwidth |
title_full |
Hollow Ring-Core Photonic Crystal Fiber With >500 OAM Modes Over 360-nm Communications Bandwidth |
title_fullStr |
Hollow Ring-Core Photonic Crystal Fiber With >500 OAM Modes Over 360-nm Communications Bandwidth |
title_full_unstemmed |
Hollow Ring-Core Photonic Crystal Fiber With >500 OAM Modes Over 360-nm Communications Bandwidth |
title_sort |
hollow ring-core photonic crystal fiber with >500 oam modes over 360-nm communications bandwidth |
publisher |
IEEE |
series |
IEEE Access |
issn |
2169-3536 |
publishDate |
2021-01-01 |
description |
We propose and design a hollow As<sub>2</sub>S<sub>3</sub> ring-core photonic crystal fiber (PCF) with 514 radially fundamental orbital angular momentum (OAM) modes over 360 nm communications bandwidth across all the O, E, S, C, and L bands. The designed PCF with 40 <inline-formula> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula>-radius air core and 150 nm-width As<sub>2</sub>S<sub>3</sub> ring can support eigenmodes up to HE<sub>130,1</sub> and EH<sub>128,1</sub>. The numerical analysis shows that the designed ring PCF has large effective refractive index contrast, and can transmit up to 874 OAM modes near 1.55 <inline-formula> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula>. Simulation results show that in the C and L bands, the PCF with a hollow-core radius of 40 <inline-formula> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula> and a ring width of 0.15 <inline-formula> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula> can retain an <inline-formula> <tex-math notation="LaTeX">$2.5\times 10 ^{-3}$ </tex-math></inline-formula> effective refractive index difference between the two highest order OAM modes, which achieves effective mode separation, thereby achieving stable OAM mode transmission. The <inline-formula> <tex-math notation="LaTeX">$n_{eff}$ </tex-math></inline-formula> difference between the even and odd fiber eigenmodes and the intra-mode walk-off are also carefully studied under different bending radii. The results show that higher-order OAM modes has better tolerance to the fiber bending, compared with the lower-order modes. The fiber has the potential to support ultra-high capacity OAM mode division multiplexing in the optical fiber communication systems. |
topic |
Orbital angular momentum fiber optics mode division multiplexing photonic crystal fiber |
url |
https://ieeexplore.ieee.org/document/9419037/ |
work_keys_str_mv |
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