Ultra-Broadband Single-Mode Single-Polarization Micro-Structured Fiber Based on "Coupling-Coupling-Absorption" Mechanism

Chang Zhao; Jipeng Li; Hongda Yang; Man Yang; Qihao Yang; Lantian Hou; Wei Wang

doi:10.3788/AOS221321

Acta Optica Sinica, Volume. 43, Issue 2, 0206003(2023)

Ultra-Broadband Single-Mode Single-Polarization Micro-Structured Fiber Based on "Coupling-Coupling-Absorption" Mechanism

Chang Zhao^1,3, Jipeng Li², Hongda Yang^1,3, Man Yang^1,3, Qihao Yang^1,3, Lantian Hou^1,3, and Wei Wang^1,3、*

Author Affiliations

¹School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China

²Department of Electrical and Electronic Engineering, Shijiazhuang University of Applied Technology, Shijiazhuang 050081, Hebei, China

³Key Laboratory for Special Fiber and Fiber Sensor of Hebei Province, Qinhuangdao 066004, Hebei, China

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Figures & Tables(11)

Fig. 1. Cross-section of broadband SMSP-MSF with regular hexagonal lattice

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$Real part of refractive index for each mode at different d11. (a) Real part of refractive index for SPP mode varying with d11; real part of refractive index for x-polarized mode, defect core mode, and SPP mode varying with wavelength at (b) d11=1.07 μm, (c) d11=1.17 μm, and (d) d11=1.37 μm$

Fig. 2. Real part of refractive index for each mode at different d₁₁. (a) Real part of refractive index for SPP mode varying with d₁₁; real part of refractive index for x-polarized mode, defect core mode, and SPP mode varying with wavelength at (b) d₁₁=1.07 μm, (c) d₁₁=1.17 μm, and (d) d₁₁=1.37 μm

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Fig. 3. Influence of d₁₁ on confinement loss of x-polarized mode

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$Real part of refractive index for each mode varying with wavelength at different t. (a) Real part of refractive index for SPP mode varying with t; real part of refractive index for x-polarized mode, defect core mode, and SPP mode varying with wavelength at (b) t=18 nm, (c) t=30 nm, and (d) t=42 nm$

Fig. 4. Real part of refractive index for each mode varying with wavelength at different t. (a) Real part of refractive index for SPP mode varying with t; real part of refractive index for x-polarized mode, defect core mode, and SPP mode varying with wavelength at (b) t=18 nm, (c) t=30 nm, and (d) t=42 nm

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Fig. 5. Influence of t on confinement loss of x-polarized mode

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$Real part of mode refractive index and confinement loss of polarized mode for SMSP-MSF with regular hexagonal lattice varying with wavelength. (a) Refractive index of each mode ; (b) confinement loss of x-polarized and y-polarized modes$

Fig. 6. Real part of mode refractive index and confinement loss of polarized mode for SMSP-MSF with regular hexagonal lattice varying with wavelength. (a) Refractive index of each mode ; (b) confinement loss of x-polarized and y-polarized modes

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Fig. 7. Cross-section of SMSP-MSF with square lattice

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$Real part of mode refractive index and confinement loss of polarized mode for SMSP-MSF with square lattice varying with wavelength. (a) Refractive index of each mode; (b) confinement loss of x-polarized and y-polarized modes$

Fig. 8. Real part of mode refractive index and confinement loss of polarized mode for SMSP-MSF with square lattice varying with wavelength. (a) Refractive index of each mode; (b) confinement loss of x-polarized and y-polarized modes

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Fig. 9. Mode field distributions of SMSP-MSF for different modes. (a) x-polarized core mode; (b) y-polarized core mode

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Fig. 10. Γ and R_PEvarying with wavelength

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Table 1. Performance comparison between two SMSP-MSFs
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Table 1. Performance comparison between two SMSP-MSFs
Type of SMSP-MSF Max loss for wanted polarized core mode /（dB·m^-1） Band width /nm Γ R_PE /dB
Hexagonal lattice SMSP-MSF 0.32 380 395 130
Square lattice SMSP-MSF 2.54×10^-4 80 5×10⁵ 113

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Chang Zhao, Jipeng Li, Hongda Yang, Man Yang, Qihao Yang, Lantian Hou, Wei Wang. Ultra-Broadband Single-Mode Single-Polarization Micro-Structured Fiber Based on "Coupling-Coupling-Absorption" Mechanism[J]. Acta Optica Sinica, 2023, 43(2): 0206003

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