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Acta Optica Sinica, Volume. 44, Issue 16, 1606003(2024)

Novel Mode-Division Multiplexer/Demultiplexer with Ultra-Large Bandwidth and Ultra-Low Insertion Loss Based on Five-Core Photonic Crystal Fiber

Zhanqiang Hui1,2、*, Zelin Li1,2, Dongdong Han1,2, and Tiantian Li1,2
Author Affiliations
  • 1School of Electronic Engineering, Xi’an University of Posts and Telecommunications, Xi’an 710121, Shaanxi , China
  • 2Xi’an Key Laboratory of Microwave Photonics and Optical Communication, Xi’an University of Posts and Telecommunications, Xi’an 710121, Shaanxi , China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (12)
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    References (40)
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    Figures & Tables(12)
    Profile structure diagram of MUX/DMUX based on five-core PCF. (a) Profile structure diagram of the device along the direction of light transmission; (b) section structure diagrams of main core, side core 1, side core 2, side core 3, and side core 4

    Fig. 1. Profile structure diagram of MUX/DMUX based on five-core PCF. (a) Profile structure diagram of the device along the direction of light transmission; (b) section structure diagrams of main core, side core 1, side core 2, side core 3, and side core 4

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    Mode field diagrams in the main core. (a) LP01; (b) LP11; (c) LP21; (d) LP31; (e) LP12

    Fig. 2. Mode field diagrams in the main core. (a) LP01; (b) LP11; (c) LP21; (d) LP31; (e) LP12

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    Variations in refractive indices and differences in LP01, LP11, LP21, LP31, and LP12 modes with input light wavelength from 1.3 μm to 1.8 μm

    Fig. 3. Variations in refractive indices and differences in LP01, LP11, LP21, LP31, and LP12 modes with input light wavelength from 1.3 μm to 1.8 μm

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    Effect of structural parameters of side core 1 on effective refractive index. (a) Effect of r1 on effective refractive index; (b) effect of d1 on effective refractive index; (c) effect of Λ2 on effective refractive index; (d) effective refractive index difference between LP01 mode in side core 1 and LP11 mode in center core

    Fig. 4. Effect of structural parameters of side core 1 on effective refractive index. (a) Effect of r1 on effective refractive index; (b) effect of d1 on effective refractive index; (c) effect of Λ2 on effective refractive index; (d) effective refractive index difference between LP01 mode in side core 1 and LP11 mode in center core

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    Effect of structural parameters of side core 2 on effective refractive index. (a) Effect of r2 on effective refractive index; (b) effect of d2 on effective refractive index; (c) effect of Λ1 on effective refractive index; (d) effective refractive index difference between LP01 mode in side core 2 and LP21 mode in center core

    Fig. 5. Effect of structural parameters of side core 2 on effective refractive index. (a) Effect of r2 on effective refractive index; (b) effect of d2 on effective refractive index; (c) effect of Λ1 on effective refractive index; (d) effective refractive index difference between LP01 mode in side core 2 and LP21 mode in center core

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    Effect of structural parameters of side core 3 on effective refractive index. (a) Effect of r3 on effective refractive index; (b) effect of d3 on effective refractive index; (c) effect of Λ1 on effective refractive index; (d) effective refractive index difference between LP01 mode in side core 3 and LP31 mode in center core

    Fig. 6. Effect of structural parameters of side core 3 on effective refractive index. (a) Effect of r3 on effective refractive index; (b) effect of d3 on effective refractive index; (c) effect of Λ1 on effective refractive index; (d) effective refractive index difference between LP01 mode in side core 3 and LP31 mode in center core

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    Effect of structural parameters of side core 4 on effective refractive index. (a) Effect of r4 on effective refractive index; (b) effect of d4 on effective refractive index; (c) effect of Λ1 on effective refractive index; (d) effective refractive index difference between LP01 mode in side core 4 and LP12 mode in center core

    Fig. 7. Effect of structural parameters of side core 4 on effective refractive index. (a) Effect of r4 on effective refractive index; (b) effect of d4 on effective refractive index; (c) effect of Λ1 on effective refractive index; (d) effective refractive index difference between LP01 mode in side core 4 and LP12 mode in center core

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    MCE of LP11, LP21, LP31, and LP12 modes. (a) Relationship between MCE and device length; (b) relationship among MCE, normalized MCE, and wavelength for device length of 1.84 μm

    Fig. 8. MCE of LP11, LP21, LP31, and LP12 modes. (a) Relationship between MCE and device length; (b) relationship among MCE, normalized MCE, and wavelength for device length of 1.84 μm

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    IL and CT of LP11, LP21, LP31, and LP12 modes. (a) Relationship among IL, normalization IL, and wavelength; (b) variation of CT in different fiber core with wavelength

    Fig. 9. IL and CT of LP11, LP21, LP31, and LP12 modes. (a) Relationship among IL, normalization IL, and wavelength; (b) variation of CT in different fiber core with wavelength

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    Mode field evolutions of simultaneous transmission of modes. (a) LP11 and LP21 modes; (b) LP31 and LP12 modes

    Fig. 10. Mode field evolutions of simultaneous transmission of modes. (a) LP11 and LP21 modes; (b) LP31 and LP12 modes

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    Variation in MCE when device size changes. (a) With air-hole size and distance between adjacent air-hole centers changed by 0.5%; (b) with air-hole size and distance between adjacent air-hole centers changed by -0.5%

    Fig. 11. Variation in MCE when device size changes. (a) With air-hole size and distance between adjacent air-hole centers changed by 0.5%; (b) with air-hole size and distance between adjacent air-hole centers changed by -0.5%

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    • Table 1. Comparison of MUX/DMUX performances

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      Table 1. Comparison of MUX/DMUX performances

      LiteratureNumber of modesIL /dBLengthBandwidth /nmCT /dBYear
      Ref. ［8］2<180 μm50—2012
      Ref. ［9］2<2310 μm90<-102020
      Ref. ［10］2>0.350 μm100<-162013
      Ref. ［11］20.3100 μm100<-362013
      Ref. ［12］60.42-2.0029 mm35<-11.62018
      Ref. ［13］2<1.51.2 mm30<-92013
      Ref. ［14］21180 μm75<-202016
      Ref. ［15］2<1.5180 μm90<-192017
      Ref. ［17］10<0.389 cm35—2019
      Ref. ［28］3<0.5344.9 mm140—2022
      This paper5<0.151.84 mm620<-11.342023
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    Zhanqiang Hui, Zelin Li, Dongdong Han, Tiantian Li. Novel Mode-Division Multiplexer/Demultiplexer with Ultra-Large Bandwidth and Ultra-Low Insertion Loss Based on Five-Core Photonic Crystal Fiber[J]. Acta Optica Sinica, 2024, 44(16): 1606003

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    Paper Information

    Category: Fiber Optics and Optical Communications

    Received: Mar. 8, 2024

    Accepted: Apr. 28, 2024

    Published Online: Aug. 5, 2024

    The Author Email: Hui Zhanqiang (zhanqianghui@xupt.edu.cn)

    DOI:10.3788/AOS240713

    CSTR:32393.14.AOS240713

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology