Air-Core Ring Fiber Guiding >400 Radially Fundamental OAM Modes Across S + C + L Bands
In this paper, we propose and design a Ge-doped air-core ring fiber, which can support a large amount of OAM modes for mode-division multiplexing (MDM) in optical fiber communications. By varying the mole fraction of GeO<sub>2</sub> and adjusting the structure parameter, including the ai...
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2021-01-01
|
| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9427152/ |
| _version_ | 1818656927681347584 |
|---|---|
| author | Yingning Wang Wenqian Zhao Wenpu Geng Yuxi Fang Changjing Bao Zhi Wang Hao Zhang Yongxiong Ren Zhongqi Pan Yang Yue |
| author_facet | Yingning Wang Wenqian Zhao Wenpu Geng Yuxi Fang Changjing Bao Zhi Wang Hao Zhang Yongxiong Ren Zhongqi Pan Yang Yue |
| author_sort | Yingning Wang |
| collection | DOAJ |
| description | In this paper, we propose and design a Ge-doped air-core ring fiber, which can support a large amount of OAM modes for mode-division multiplexing (MDM) in optical fiber communications. By varying the mole fraction of GeO<sub>2</sub> and adjusting the structure parameter, including the air-core radius and the GeO<sub>2</sub>-doped ring width, we investigate the influence of different fiber parameters on the total supported OAM mode number. The hollow silica fiber with a 50-<inline-formula> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula> air core and a 1.5-<inline-formula> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula> thickness of Ge-doped ring is designed in simulation to support fiber eigenmodes up to HE<sub>112,1</sub> and EH<sub>107,1</sub>. This provides 436 OAM modes at 1550 nm while maintaining radially single mode condition. Moreover, it can support more than 400 radially fundamental OAM modes for the wavelength from 1460 nm to 1625 nm, covering entire S, C and L bands. The optical parameters of the guided OAM modes in the fiber are also numerically analyzed, including effect of material loss, optical field distribution, effective refractive index profile and chromatic dispersion, etc. The simulation results show that the higher-order OAM modes have longer <inline-formula> <tex-math notation="LaTeX">$2\pi $ </tex-math></inline-formula> and 10-ps walk-off length in the air-core ring fiber with ellipticity or bending compared with low-order modes. |
| first_indexed | 2024-12-17T03:33:22Z |
| format | Article |
| id | doaj.art-c97995f8b2a54c43aad42a6365bfe915 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-17T03:33:22Z |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-c97995f8b2a54c43aad42a6365bfe9152022-12-21T22:05:12ZengIEEEIEEE Access2169-35362021-01-019756177562510.1109/ACCESS.2021.30785049427152Air-Core Ring Fiber Guiding >400 Radially Fundamental OAM Modes Across S + C + L BandsYingning Wang0https://orcid.org/0000-0001-7876-5722Wenqian Zhao1https://orcid.org/0000-0002-8826-1816Wenpu Geng2https://orcid.org/0000-0002-0989-5918Yuxi Fang3https://orcid.org/0000-0003-1736-484XChangjing Bao4Zhi Wang5https://orcid.org/0000-0002-0293-4099Hao Zhang6https://orcid.org/0000-0002-8226-0695Yongxiong Ren7https://orcid.org/0000-0002-8291-883XZhongqi Pan8Yang Yue9https://orcid.org/0000-0002-6457-0120Institute 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, USAInstitute 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 and Computer Engineering, University of Louisiana at Lafayette, Lafayette, LA, USAInstitute of Modern Optics, Nankai University, Tianjin, ChinaIn this paper, we propose and design a Ge-doped air-core ring fiber, which can support a large amount of OAM modes for mode-division multiplexing (MDM) in optical fiber communications. By varying the mole fraction of GeO<sub>2</sub> and adjusting the structure parameter, including the air-core radius and the GeO<sub>2</sub>-doped ring width, we investigate the influence of different fiber parameters on the total supported OAM mode number. The hollow silica fiber with a 50-<inline-formula> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula> air core and a 1.5-<inline-formula> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula> thickness of Ge-doped ring is designed in simulation to support fiber eigenmodes up to HE<sub>112,1</sub> and EH<sub>107,1</sub>. This provides 436 OAM modes at 1550 nm while maintaining radially single mode condition. Moreover, it can support more than 400 radially fundamental OAM modes for the wavelength from 1460 nm to 1625 nm, covering entire S, C and L bands. The optical parameters of the guided OAM modes in the fiber are also numerically analyzed, including effect of material loss, optical field distribution, effective refractive index profile and chromatic dispersion, etc. The simulation results show that the higher-order OAM modes have longer <inline-formula> <tex-math notation="LaTeX">$2\pi $ </tex-math></inline-formula> and 10-ps walk-off length in the air-core ring fiber with ellipticity or bending compared with low-order modes.https://ieeexplore.ieee.org/document/9427152/Orbital angular momentumfiber opticsring fibermultiplexing |
| spellingShingle | Yingning Wang Wenqian Zhao Wenpu Geng Yuxi Fang Changjing Bao Zhi Wang Hao Zhang Yongxiong Ren Zhongqi Pan Yang Yue Air-Core Ring Fiber Guiding >400 Radially Fundamental OAM Modes Across S + C + L Bands IEEE Access Orbital angular momentum fiber optics ring fiber multiplexing |
| title | Air-Core Ring Fiber Guiding >400 Radially Fundamental OAM Modes Across S + C + L Bands |
| title_full | Air-Core Ring Fiber Guiding >400 Radially Fundamental OAM Modes Across S + C + L Bands |
| title_fullStr | Air-Core Ring Fiber Guiding >400 Radially Fundamental OAM Modes Across S + C + L Bands |
| title_full_unstemmed | Air-Core Ring Fiber Guiding >400 Radially Fundamental OAM Modes Across S + C + L Bands |
| title_short | Air-Core Ring Fiber Guiding >400 Radially Fundamental OAM Modes Across S + C + L Bands |
| title_sort | air core ring fiber guiding x003e 400 radially fundamental oam modes across s x002b c x002b l bands |
| topic | Orbital angular momentum fiber optics ring fiber multiplexing |
| url | https://ieeexplore.ieee.org/document/9427152/ |
| work_keys_str_mv | AT yingningwang aircoreringfiberguidingx003e400radiallyfundamentaloammodesacrosssx002bcx002blbands AT wenqianzhao aircoreringfiberguidingx003e400radiallyfundamentaloammodesacrosssx002bcx002blbands AT wenpugeng aircoreringfiberguidingx003e400radiallyfundamentaloammodesacrosssx002bcx002blbands AT yuxifang aircoreringfiberguidingx003e400radiallyfundamentaloammodesacrosssx002bcx002blbands AT changjingbao aircoreringfiberguidingx003e400radiallyfundamentaloammodesacrosssx002bcx002blbands AT zhiwang aircoreringfiberguidingx003e400radiallyfundamentaloammodesacrosssx002bcx002blbands AT haozhang aircoreringfiberguidingx003e400radiallyfundamentaloammodesacrosssx002bcx002blbands AT yongxiongren aircoreringfiberguidingx003e400radiallyfundamentaloammodesacrosssx002bcx002blbands AT zhongqipan aircoreringfiberguidingx003e400radiallyfundamentaloammodesacrosssx002bcx002blbands AT yangyue aircoreringfiberguidingx003e400radiallyfundamentaloammodesacrosssx002bcx002blbands |