Single-Polarization Single-Mode Hollow-Core Anti-Resonant Fiber with Low Loss and Wide Bandwidth
Stable generation and propagation of single-polarization single-mode (SPSM) beams in hollow-core fiber (HCF) has become an important research direction. However, their routine use is yet to become a reality, a major obstacle is to maintain the polarization state of light at a sufficiently long trans...
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MDPI AG
2025-07-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/12/7/686 |
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| author | Yong You Wei Liu Shuo Zhang Jianxiong Wu Yuanjiang Li Huimin Shi Haokun Yang |
| author_facet | Yong You Wei Liu Shuo Zhang Jianxiong Wu Yuanjiang Li Huimin Shi Haokun Yang |
| author_sort | Yong You |
| collection | DOAJ |
| description | Stable generation and propagation of single-polarization single-mode (SPSM) beams in hollow-core fiber (HCF) has become an important research direction. However, their routine use is yet to become a reality, a major obstacle is to maintain the polarization state of light at a sufficiently long transmission distance in a wide spectral range. In the paper, a hollow-core anti-resonant fiber (HC-ARF) that can support SPSM beam transmission with an average loss of 15 dB/km in wavelengths beyond 1000 nm is proposed. SPSM guidance is achieved by setting the cladding tubes in the orthogonal direction to have different structures and material properties. Different cladding tube structures break the degeneracy of polarization modes, and different cladding tube materials make the polarization modes experience enough loss difference. In the range of more than 600 nm, the <i>y</i>-polarization loss ≈ 9.3 dB/km, while the <i>x</i>-polarization is > 500 dB/km, and the birefringence is > 1.7 × 10<sup>−5</sup>. In addition, the SPSM optimization process and bending losses in different directions are also discussed in detail. |
| format | Article |
| id | doaj-art-0eef609f90944b3897888637d285a643 |
| institution | DOAJ |
| issn | 2304-6732 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj-art-0eef609f90944b3897888637d285a6432025-08-20T03:08:13ZengMDPI AGPhotonics2304-67322025-07-0112768610.3390/photonics12070686Single-Polarization Single-Mode Hollow-Core Anti-Resonant Fiber with Low Loss and Wide BandwidthYong You0Wei Liu1Shuo Zhang2Jianxiong Wu3Yuanjiang Li4Huimin Shi5Haokun Yang6Ocean College, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaOcean College, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaOcean College, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaOcean College, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaOcean College, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaHebei Key Laboratory of Intelligent Data Information Processing and Control, Tangshan University, Tangshan 063000, ChinaCollege of Artificial Intelligence, Henan University, Zhengzhou 450046, ChinaStable generation and propagation of single-polarization single-mode (SPSM) beams in hollow-core fiber (HCF) has become an important research direction. However, their routine use is yet to become a reality, a major obstacle is to maintain the polarization state of light at a sufficiently long transmission distance in a wide spectral range. In the paper, a hollow-core anti-resonant fiber (HC-ARF) that can support SPSM beam transmission with an average loss of 15 dB/km in wavelengths beyond 1000 nm is proposed. SPSM guidance is achieved by setting the cladding tubes in the orthogonal direction to have different structures and material properties. Different cladding tube structures break the degeneracy of polarization modes, and different cladding tube materials make the polarization modes experience enough loss difference. In the range of more than 600 nm, the <i>y</i>-polarization loss ≈ 9.3 dB/km, while the <i>x</i>-polarization is > 500 dB/km, and the birefringence is > 1.7 × 10<sup>−5</sup>. In addition, the SPSM optimization process and bending losses in different directions are also discussed in detail.https://www.mdpi.com/2304-6732/12/7/686hollow-core anti-resonant fibersingle-polarization single-modemode controlmode coupling |
| spellingShingle | Yong You Wei Liu Shuo Zhang Jianxiong Wu Yuanjiang Li Huimin Shi Haokun Yang Single-Polarization Single-Mode Hollow-Core Anti-Resonant Fiber with Low Loss and Wide Bandwidth Photonics hollow-core anti-resonant fiber single-polarization single-mode mode control mode coupling |
| title | Single-Polarization Single-Mode Hollow-Core Anti-Resonant Fiber with Low Loss and Wide Bandwidth |
| title_full | Single-Polarization Single-Mode Hollow-Core Anti-Resonant Fiber with Low Loss and Wide Bandwidth |
| title_fullStr | Single-Polarization Single-Mode Hollow-Core Anti-Resonant Fiber with Low Loss and Wide Bandwidth |
| title_full_unstemmed | Single-Polarization Single-Mode Hollow-Core Anti-Resonant Fiber with Low Loss and Wide Bandwidth |
| title_short | Single-Polarization Single-Mode Hollow-Core Anti-Resonant Fiber with Low Loss and Wide Bandwidth |
| title_sort | single polarization single mode hollow core anti resonant fiber with low loss and wide bandwidth |
| topic | hollow-core anti-resonant fiber single-polarization single-mode mode control mode coupling |
| url | https://www.mdpi.com/2304-6732/12/7/686 |
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