Current Optics and Photonics

  • 제6권2호
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  • Pages.143-150
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  • 2022
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  • 2508-7266(pISSN)
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  • 2508-7274(eISSN)
한국광학회 (Optical Society of Korea)
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Simulation of the Structural Parameters of Anti-resonant Hollow-core Photonic Crystal Fibers

  • Li, Qing (Institute of Applied Electronics, China Academy of Engineering Physics) ;
  • Feng, Yujun (Institute of Applied Electronics, China Academy of Engineering Physics) ;
  • Sun, Yinhong (Institute of Applied Electronics, China Academy of Engineering Physics) ;
  • Chang, Zhe (Institute of Applied Electronics, China Academy of Engineering Physics) ;
  • Wang, Yanshan (Institute of Applied Electronics, China Academy of Engineering Physics) ;
  • Peng, Wanjing (Institute of Applied Electronics, China Academy of Engineering Physics) ;
  • Ma, Yi (Institute of Applied Electronics, China Academy of Engineering Physics) ;
  • Tang, Chun (Institute of Applied Electronics, China Academy of Engineering Physics)
  • 투고 : 2021.11.16
  • 심사 : 2022.01.25
  • 발행 : 2022.04.25
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초록

Anti-resonant hollow-core photonic crystal fiber (AR-HCF) has unique advantages, such as low nonlinearity and high damage threshold, which make it a promising candidate for high-power laser delivery at distances of tens of meters. However, due to the special structure, optical properties such as mode-field profile and bending loss of hollow-core fibers are different from those of solid-core fibers. These differences have limited the widespread use of AR-HCF in practice. In this paper we conduct numerical analysis of AR-HCFs with different structural parameters, to analyze their influences on an AR-HCF's optical properties. The simulation results show that with a 23-㎛ air-core diameter, the fundamental mode profile of an AR-HCF can well match that of the widely used Nufern's 20/400 fiber, for nearly-single-mode power delivery applications. Moreover, with the ratio of cladding capillary diameter to air-core diameter ranging from 0.6 to 0.7, the AR-HCF shows excellent optical characteristics, including low bending sensitivity while maintaining single-mode transmission at the same time. We believe these results lay the foundation for the application of AR-HCFs in the power delivery of high power fiber laser systems.

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과제정보

Innovation Development Fund of CAEP (C-2021-CX20210047); Innovation Development Fund of CAEP (C-2021-CX20200030).

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