A Detailed Study of a Resonant-Assisted Segmented Cladding Fiber for Large Mode Area Applications
In this work, we have proposed and optimized a large mode area segmented cladding fiber (SCF) with an unconventional low-index segment cladding. The low-refractive-index cladding proposed in this paper consists of three parts. There three geometric parameters chosen as design variables were the leng...
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MDPI AG
2025-01-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/12/1/84 |
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| author | Minmin Xue Hao Qin Suwen Li Yuqi Hao Libo Yuan |
| author_facet | Minmin Xue Hao Qin Suwen Li Yuqi Hao Libo Yuan |
| author_sort | Minmin Xue |
| collection | DOAJ |
| description | In this work, we have proposed and optimized a large mode area segmented cladding fiber (SCF) with an unconventional low-index segment cladding. The low-refractive-index cladding proposed in this paper consists of three parts. There three geometric parameters chosen as design variables were the length and width of the first part and the leg length of the isosceles trapezoid in the second part. To investigate the properties of the proposed SCF, numerical modeling based on the finite element method (FEM) was performed. A high leakage loss ratio (>9000) between the high-order modes (HOMs) and the fundamental mode was achieved at a wavelength of 1310 nm, which is significantly higher than that of conventional SCFs. Additionally, the mode area of the proposed fiber reaches 890 µm<sup>2</sup> at a core radius of 20 µm. The bending effects on the SCF were also studied. When the bending radius is greater than 0.3 m, the mode area greater than 880 µm<sup>2</sup> and remains stable, and the leakage loss of the least high-order mode (LP11h) exceeds 30 dB/m. The new fiber design demonstrates significant potential for high-power fiber lasers |
| format | Article |
| id | doaj-art-674293760c0940578258eaab0ef3249e |
| institution | Kabale University |
| issn | 2304-6732 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
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| series | Photonics |
| spelling | doaj-art-674293760c0940578258eaab0ef3249e2025-01-24T13:46:27ZengMDPI AGPhotonics2304-67322025-01-011218410.3390/photonics12010084A Detailed Study of a Resonant-Assisted Segmented Cladding Fiber for Large Mode Area ApplicationsMinmin Xue0Hao Qin1Suwen Li2Yuqi Hao3Libo Yuan4Photonics Research Center, School of Optoelectronic Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaPhotonics Research Center, School of Optoelectronic Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaPhotonics Research Center, School of Optoelectronic Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaPhotonics Research Center, School of Optoelectronic Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaPhotonics Research Center, School of Optoelectronic Engineering, Guilin University of Electronic Technology, Guilin 541004, ChinaIn this work, we have proposed and optimized a large mode area segmented cladding fiber (SCF) with an unconventional low-index segment cladding. The low-refractive-index cladding proposed in this paper consists of three parts. There three geometric parameters chosen as design variables were the length and width of the first part and the leg length of the isosceles trapezoid in the second part. To investigate the properties of the proposed SCF, numerical modeling based on the finite element method (FEM) was performed. A high leakage loss ratio (>9000) between the high-order modes (HOMs) and the fundamental mode was achieved at a wavelength of 1310 nm, which is significantly higher than that of conventional SCFs. Additionally, the mode area of the proposed fiber reaches 890 µm<sup>2</sup> at a core radius of 20 µm. The bending effects on the SCF were also studied. When the bending radius is greater than 0.3 m, the mode area greater than 880 µm<sup>2</sup> and remains stable, and the leakage loss of the least high-order mode (LP11h) exceeds 30 dB/m. The new fiber design demonstrates significant potential for high-power fiber lasershttps://www.mdpi.com/2304-6732/12/1/84fiber opticslarge mode areasegmented cladding fibersingle-mode fiber |
| spellingShingle | Minmin Xue Hao Qin Suwen Li Yuqi Hao Libo Yuan A Detailed Study of a Resonant-Assisted Segmented Cladding Fiber for Large Mode Area Applications Photonics fiber optics large mode area segmented cladding fiber single-mode fiber |
| title | A Detailed Study of a Resonant-Assisted Segmented Cladding Fiber for Large Mode Area Applications |
| title_full | A Detailed Study of a Resonant-Assisted Segmented Cladding Fiber for Large Mode Area Applications |
| title_fullStr | A Detailed Study of a Resonant-Assisted Segmented Cladding Fiber for Large Mode Area Applications |
| title_full_unstemmed | A Detailed Study of a Resonant-Assisted Segmented Cladding Fiber for Large Mode Area Applications |
| title_short | A Detailed Study of a Resonant-Assisted Segmented Cladding Fiber for Large Mode Area Applications |
| title_sort | detailed study of a resonant assisted segmented cladding fiber for large mode area applications |
| topic | fiber optics large mode area segmented cladding fiber single-mode fiber |
| url | https://www.mdpi.com/2304-6732/12/1/84 |
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