Theoretical simulation of a novel birefringent photonic crystal fiber with surface plasmon resonance around 1300 nm

Li, Duanming; Zhou, Guiyao

doi:10.1088/1674-1056/25/3/034209

Cited by 7 publications

(1 citation statement)

References 30 publications

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“…In 2016, Li et al simulated high birefringence PCF with air holes filled with fluid and coated with silver film. [13] Liu et al designed a dual polarization beam splitter filled with gold, the extinction ratio is lower than −20 dB with a bandwidth of 226 nm. [14] Photonic crystal fiber polarization filters filled with metal or metal wires have been widely reported.…”

Section: Introductionmentioning

confidence: 99%

Photonic crystal fiber polarization filter with two large apertures coated with gold layers

Wu¹,

Li²,

Liu³

et al. 2017

Chinese Phys. B

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A novel photonic crystal fiber (PCF) polarization filter is designed and fabricated; it consists of two large apertures coated with gold. The asymmetric structure separates the resonance position in the vertical direction well. Due to the metal layer covering, loss is greatly improved. Finite element method is applied for numerical simulation. The influences of varying gold thickness and varying the diameters and the center positions of the larger apertures on filtering performance are evaluated. Theory of coupling between surface plasma and core mode is introduced. By modulating the parameters, we realize a single polarization filter at 1.31 µm and 1.55 µm. The basal mode loss in the y direction can reach 1408.80 dB/cm at 1.31 µm and 1911.22 dB/cm at 1.55 µm respectively, but basal mode loss in the x direction is relatively small, 0.82 dB/cm and 1.87 dB/cm. In addition, two kinds of broadband polarization filters are proposed. If the fiber length is set to 200 µm, the extinction ratio is greater than 20 dB with width of 570 nm and 490 nm. The filter has simple structure and excellent performance.

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Section: Introductionmentioning

confidence: 99%