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Acta Physica Sinica, Volume. 69, Issue 16, 167801-1(2020)

Research on negative curvature terahertz fiber based on nested triangle structure cladding

Miao Meng1...2, De-Xian Yan1,2,*, Jiu-Sheng Li1,2 and Shuai Sun3 |Show fewer author(s)
Author Affiliations
  • 1Key Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang Province, College of Information Engineering, China Jiliang University, Hangzhou 310018, China
  • 2Centre for THz Research, China Jiliang University, Hangzhou 310018, China
  • 3College of Precision Instrument and Optoelectronic Engineering, Tianjin University, Tianjin 300072, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (10)
    Equations (4)
    References (32)
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    Figures & Tables(10)
    Structure of negative curvature hollow core fiber with nested triangle structure.

    Fig. 1. Structure of negative curvature hollow core fiber with nested triangle structure.

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    (a) Confinement loss; (b) dispersion characteristics; (c) effective mode field area; (d)core power ratio versus frequency.

    Fig. 2. (a) Confinement loss; (b) dispersion characteristics; (c) effective mode field area; (d)core power ratio versus frequency.

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    Fiber mode field distribution. (a) 2.0 THz; (b) 2.2 THz; (c) 2.4 THz; (d) 2.6 THz; (e) 2.8 THz.

    Fig. 3. Fiber mode field distribution. (a) 2.0 THz; (b) 2.2 THz; (c) 2.4 THz; (d) 2.6 THz; (e) 2.8 THz.

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    Structure diagram of external bending negative curvature fiber.

    Fig. 4. Structure diagram of external bending negative curvature fiber.

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    (a)confinement loss; (b) dispersion characteristics; (c) effective mode field area; (d) power ratio curve with frequency.

    Fig. 5. (a)confinement loss; (b) dispersion characteristics; (c) effective mode field area; (d) power ratio curve with frequency.

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    The distribution of mode field of external bending fiber at different frequencies. (a) 2.0 THz; (b) 2.2 THz; (c) 2.4 THz; (d) 2.6 THz; (e) 2.8 THz.

    Fig. 6. The distribution of mode field of external bending fiber at different frequencies. (a) 2.0 THz; (b) 2.2 THz; (c) 2.4 THz; (d) 2.6 THz; (e) 2.8 THz.

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    Internal bending negative curvature fiber structure diagram.

    Fig. 7. Internal bending negative curvature fiber structure diagram.

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    (a)confinement loss; (b) dispersion characteristics; (c) effective mode field area; (d) power ratio curve with frequency.

    Fig. 8. (a)confinement loss; (b) dispersion characteristics; (c) effective mode field area; (d) power ratio curve with frequency.

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    The distribution of mode field of internal bending fiber at different frequencies. (a) 2.0 THz; (b) 2.2 THz; (c) 2.4 THz; (d) 2.6 THz; (e) 2.8 THz.

    Fig. 9. The distribution of mode field of internal bending fiber at different frequencies. (a) 2.0 THz; (b) 2.2 THz; (c) 2.4 THz; (d) 2.6 THz; (e) 2.8 THz.

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    • Table 1.

      Performance comparison between the designed optical fiber structure and other structures.

      设计的光纤结构与其他结构的性能对比

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      Table 1.

      Performance comparison between the designed optical fiber structure and other structures.

      设计的光纤结构与其他结构的性能对比

      参考文献光纤结构频率/THz纤芯功率比/%限制损耗/dB·cm–1色散/ps·(THz·cm)–1Aeff/m2
      [17] 电介质管包层0.8280.16——
      [18] 三角形包层0.21—0.3950.66——
      [19] 夹杂金属丝包层1.0990.000 058——
      本文直边2.1—2.8990.005–0.19—0.191.5 × 10–6
      外弯曲2.06—2.62990.003–0.19—0.191.04 × 10–6
      内弯曲2.22—2.48990.002–0.02—0.21.08 × 10–6
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    Miao Meng, De-Xian Yan, Jiu-Sheng Li, Shuai Sun. Research on negative curvature terahertz fiber based on nested triangle structure cladding[J]. Acta Physica Sinica, 2020, 69(16): 167801-1

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    Paper Information

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    Received: Mar. 27, 2020

    Accepted: --

    Published Online: Jan. 4, 2021

    The Author Email:

    DOI:10.7498/aps.69.20200457

    Topics

    Nuclear physics
    Particles and fields
    Particle and nuclear astrophysics and cosmology