• Optical Instruments
  • Vol. 44, Issue 4, 73 (2022)
Jiashuai CAO and Hongzhi JIA*
Author Affiliations
  • School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
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    DOI: 10.3969/j.issn.1005-5630.2022.004.010 Cite this Article
    Jiashuai CAO, Hongzhi JIA. Generation of orbital angular momentum mode based on photonic crystal fiber[J]. Optical Instruments, 2022, 44(4): 73 Copy Citation Text show less
    Cross-sectional view of two-dimensional optical fiber structure and structural parameters
    Fig. 1. Cross-sectional view of two-dimensional optical fiber structure and structural parameters
    Electric field intensity and phase diagram
    Fig. 2. Electric field intensity and phase diagram
    The effective refractive index of HE4,1 odd and even modes, as well as generated OAM mode distance, as a function of wavelength
    Fig. 3. The effective refractive index of HE4,1 odd and even modes, as well as generated OAM mode distance, as a function of wavelength
    The relationship between the distance and wavelength of the OAM mode when d2 changes
    Fig. 4. The relationship between the distance and wavelength of the OAM mode when d2 changes
    The OAM mode generation distance and confinement loss, as a function of d2 at 1.55 μm
    Fig. 5. The OAM mode generation distance and confinement loss, as a function of d2 at 1.55 μm
    The effective refractive index of HE4,1 odd and even modes, as well as generated OAM mode distance, as a function of wavelength
    Fig. 6. The effective refractive index of HE4,1 odd and even modes, as well as generated OAM mode distance, as a function of wavelength
    Phase of generated OAM beam
    Fig. 7. Phase of generated OAM beam
    阶数R0/ μm R1/ μm R2/ μm L1/ μm L2/ μm d1/ μm d2/ μm $ n_{{\text{eff}}}^{{\text{odd}}} $$ n_{{\text{eff}}}^{{\text{even}}} $L/ μm
    20.217.61.94.91.84.81.1246241.0687556.93
    30.51.572.551.83.61.2014951.16667411.13
    41272.84.81.62.81.2051641.1757413.17
    512.162.84.51.42.21.1375051.1054812.10
    Table 1. Fiber structure parameters and generation distance of each order OAM mode
    Jiashuai CAO, Hongzhi JIA. Generation of orbital angular momentum mode based on photonic crystal fiber[J]. Optical Instruments, 2022, 44(4): 73
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