• Chinese Optics Letters
  • Vol. 18, Issue 3, 030603 (2020)
Zhuang Huo, Exian Liu, and Jianjun Liu*
Author Affiliations
  • Key Laboratory for Micro/Nano Optoelectronic Devices of Ministry of Education & Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics and Devices, School of Physics and Electronics, Hunan University, Changsha 410082, China
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    DOI: 10.3788/COL202018.030603 Cite this Article Set citation alerts
    Zhuang Huo, Exian Liu, Jianjun Liu. Hollow-core photonic quasicrystal fiber with high birefringence and ultra-low nonlinearity[J]. Chinese Optics Letters, 2020, 18(3): 030603 Copy Citation Text show less

    Abstract

    A hollow-core fiber based on photonic quasicrystal arrays is theoretically proposed for high-quality light wave propagation with high polarization maintaining performance and low nonlinearity. This fiber, called hollow-core photonic quasicrystal fiber (HC-PQF), can simultaneously realize a high birefringence that reaches 1.345 × 10-2 and a small nonlinear coefficient of 1.63 × 10-3 W-1·km-1 at a communication wavelength of 1.55 μm due to the air-filled core and unique quasiperiodic fiber structure. To further demonstrate the controllability of the nonlinear coefficient and the application of sensor and polarization-maintaining fiber, the nonlinearity is investigated by filling different inert gases in the fiber core while the birefringence keeps a high order of 10?2. In the wavelength range λ ∈ [1.53 μm, 1.57 μm], the dispersion is near zero and flattened. The HC-PQF is expected to be used for applications in optical communication, high power pulse transmission, polarization beam splitters, etc.
    B=|neffyneffx|,(1)

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    γ(λ)=2πn2λAeff,(2)

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    Aeff=(|E2|dxdy)2|E|4dxdy,(3)

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    D(λ)=Dw(λ)+Dm(λ).(4)

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    D(λ)=λc2|Re(neff)|λ2.(5)

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    Zhuang Huo, Exian Liu, Jianjun Liu. Hollow-core photonic quasicrystal fiber with high birefringence and ultra-low nonlinearity[J]. Chinese Optics Letters, 2020, 18(3): 030603
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