Study on Characteristics of Coupled-Core Four-Core Fibers With Different Core Pitches
We studied the characteristics of coupled-core four-core fibers (CC-4CFs) with different core pitches both theoretically and experimentally. The spatial mode dispersions of different fibers were analyzed, and the result agrees well with theoretical ones. In the experiment, we achieved a spatial mode...
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| Format: | Article |
| Language: | English |
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IEEE
2024-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/10354369/ |
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| author | Junjie Xiong Lin Ma Yanming Chang Tianqi Cheng Lei Shen Lei Zhang Changkun Yan Lin Sun Qingwen Liu Zuyuan He |
| author_facet | Junjie Xiong Lin Ma Yanming Chang Tianqi Cheng Lei Shen Lei Zhang Changkun Yan Lin Sun Qingwen Liu Zuyuan He |
| author_sort | Junjie Xiong |
| collection | DOAJ |
| description | We studied the characteristics of coupled-core four-core fibers (CC-4CFs) with different core pitches both theoretically and experimentally. The spatial mode dispersions of different fibers were analyzed, and the result agrees well with theoretical ones. In the experiment, we achieved a spatial mode dispersion as low as 3.72 ps/km<sup>1/2</sup> for a 4 km-long CC-4CF with core pitch of 19 μm at a bending radius of 8 cm. The impulse response matrices of four core fibers with different core pitches was investigated using swept-wavelength interferometry over 100 nm bandwidth. The impulse responses were Gaussian-shaped and consistent between different inputs and outputs for CC-4CFs. Our results show that the CC-4CFs with core pitches of 17 and 19 μm exhibit narrower pulse broadening. In addition, the mode-dependent losses of different fibers were analyzed. For the fibers with core pitch of 19 μm, the estimated mode-dependent loss was lower than 3 dB for the entire 100 nm bandwidth. Our results are especially helpful for developing coupled-core multicore fibers for long-haul transmission applications. |
| format | Article |
| id | doaj-art-5372b2e031884dd994c1cd3bb5327113 |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-5372b2e031884dd994c1cd3bb53271132025-01-24T00:00:23ZengIEEEIEEE Photonics Journal1943-06552024-01-011611710.1109/JPHOT.2023.334141510354369Study on Characteristics of Coupled-Core Four-Core Fibers With Different Core PitchesJunjie Xiong0https://orcid.org/0000-0001-9126-3284Lin Ma1https://orcid.org/0000-0001-8382-7940Yanming Chang2https://orcid.org/0000-0002-1206-922XTianqi Cheng3Lei Shen4Lei Zhang5Changkun Yan6Lin Sun7https://orcid.org/0000-0002-5725-180XQingwen Liu8https://orcid.org/0000-0003-2734-595XZuyuan He9https://orcid.org/0000-0002-7499-834XState Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, Shanghai, ChinaState Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, Shanghai, ChinaState Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, Shanghai, ChinaState Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, Shanghai, ChinaState Key Laboratory of Optical Fiber and Cable Manufacture Technology, Yangtze Optical Fiber and Cable Joint Stock Limited Company, Wuhan, ChinaState Key Laboratory of Optical Fiber and Cable Manufacture Technology, Yangtze Optical Fiber and Cable Joint Stock Limited Company, Wuhan, ChinaState Key Laboratory of Optical Fiber and Cable Manufacture Technology, Yangtze Optical Fiber and Cable Joint Stock Limited Company, Wuhan, ChinaSuzhou Key Laboratory of Advanced Optical Communication Network Technology, School of Electronic and Information Engineering, Soochow University, Suzhou, ChinaState Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, Shanghai, ChinaState Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, Shanghai, ChinaWe studied the characteristics of coupled-core four-core fibers (CC-4CFs) with different core pitches both theoretically and experimentally. The spatial mode dispersions of different fibers were analyzed, and the result agrees well with theoretical ones. In the experiment, we achieved a spatial mode dispersion as low as 3.72 ps/km<sup>1/2</sup> for a 4 km-long CC-4CF with core pitch of 19 μm at a bending radius of 8 cm. The impulse response matrices of four core fibers with different core pitches was investigated using swept-wavelength interferometry over 100 nm bandwidth. The impulse responses were Gaussian-shaped and consistent between different inputs and outputs for CC-4CFs. Our results show that the CC-4CFs with core pitches of 17 and 19 μm exhibit narrower pulse broadening. In addition, the mode-dependent losses of different fibers were analyzed. For the fibers with core pitch of 19 μm, the estimated mode-dependent loss was lower than 3 dB for the entire 100 nm bandwidth. Our results are especially helpful for developing coupled-core multicore fibers for long-haul transmission applications.https://ieeexplore.ieee.org/document/10354369/Coupled-core multicore fiberimpulse responsespatial mode dispersionswept-wavelength interferometrytransfer matrix |
| spellingShingle | Junjie Xiong Lin Ma Yanming Chang Tianqi Cheng Lei Shen Lei Zhang Changkun Yan Lin Sun Qingwen Liu Zuyuan He Study on Characteristics of Coupled-Core Four-Core Fibers With Different Core Pitches IEEE Photonics Journal Coupled-core multicore fiber impulse response spatial mode dispersion swept-wavelength interferometry transfer matrix |
| title | Study on Characteristics of Coupled-Core Four-Core Fibers With Different Core Pitches |
| title_full | Study on Characteristics of Coupled-Core Four-Core Fibers With Different Core Pitches |
| title_fullStr | Study on Characteristics of Coupled-Core Four-Core Fibers With Different Core Pitches |
| title_full_unstemmed | Study on Characteristics of Coupled-Core Four-Core Fibers With Different Core Pitches |
| title_short | Study on Characteristics of Coupled-Core Four-Core Fibers With Different Core Pitches |
| title_sort | study on characteristics of coupled core four core fibers with different core pitches |
| topic | Coupled-core multicore fiber impulse response spatial mode dispersion swept-wavelength interferometry transfer matrix |
| url | https://ieeexplore.ieee.org/document/10354369/ |
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