Theoretical Study on Low Crosstalk High-Density Composite Multi-Core Photonic Crystal Fiber

Han Zhang; Guorui Wang; Jiwei Zhang; Shuguang Li; Xin Yan; Fang Wang; Xuenan Zhang; Tonglei Cheng

doi:10.3788/CJL202148.0706005

Chinese Journal of Lasers, Volume. 48, Issue 7, 0706005(2021)

Theoretical Study on Low Crosstalk High-Density Composite Multi-Core Photonic Crystal Fiber

Han Zhang, Guorui Wang, Jiwei Zhang, Shuguang Li, Xin Yan, Fang Wang, Xuenan Zhang, and Tonglei Cheng^*

State Key Laboratory of Process Industry Integrated Automation, School of Information Science and Engineering, Northeast University, Shenyang, Liaoning 110004, China

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Figures & Tables(10)

$Cross-section and refractive index distribution of the composite 7-core PCF$

Fig. 1. Cross-section and refractive index distribution of the composite 7-core PCF

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$Variation of the Aeff with core a and relative refractive index difference Δ1$

Fig. 2. Variation of the A_eff with core a and relative refractive index difference Δ₁

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Fig. 3. XT variation curve with core a. (a) Λ₁=10 μm; (b) Λ₁=11, 12, 13 μm

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Fig. 4. Influence of different air holes on MCF. (a) XT; (b) A_eff

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Fig. 5. Influence of different hole spacing on MCF. (a) XT; (b) A_eff

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Fig. 6. Performance of different MCFs

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Fig. 7. Structure of the 31-core fiber

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Fig. 8. Variation curve of the BL with OCT

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Table 1. Initial values of the fiber structure parameters
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Table 1. Initial values of the fiber structure parameters
Parameter a /μm Λ₁ /μm Λ₂ /μm d /μm Δ₁ /% L /km λ / nm
Value 8 11 29.1 8 0.37 1 1550

Table 2. Parameters and performance of the three groups of composite 7-core PCF
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Table 2. Parameters and performance of the three groups of composite 7-core PCF
Parameter Fiber A Fiber B Fiber C
a /μm 7.0 7.5 8.0
Δ₁ /% 0.27 0.23 0.21
d /μm 9.4 9.6 10.4
Λ₁ /μm 12 12 13
Λ₂ /μm 31.7 31.7 34.4
A_eff /μm² 92.8 100.7 114.5
XT /dB -64.0 -69.1 -73.6
Dispersion /[ps·(nm·km)^-1] 24.4 25.3 24.4

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Han Zhang, Guorui Wang, Jiwei Zhang, Shuguang Li, Xin Yan, Fang Wang, Xuenan Zhang, Tonglei Cheng. Theoretical Study on Low Crosstalk High-Density Composite Multi-Core Photonic Crystal Fiber[J]. Chinese Journal of Lasers, 2021, 48(7): 0706005

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