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- Title
Design of broadband single-polarization filter based on simple structure photonic crystal fiber with gold-coated air holes.
- Authors
An, Sinuo; Hu, Chunjie; Zhou, Lei; Yi, Zao; Liu, Chao; Lv, Jingwei; Yang, Lin; Chu, Paul K.
- Abstract
A polarization filter based on simple structure photonic crystal fiber (PCF) coated with gold air holes is designed in this work. The full vector finite element method (FEM) is used to calculate the characteristic parameters of PCF. In the final numerical simulation results, the loss peak in the y polarization direction is 2305.72 dB/cm and the x -polarized loss is as low as 75.86 dB/cm at 1.31 μ m. For the fiber length of 1000 μ m, the CT reaches 1936.83 dB and a wide bandwidth greater than 20 dB can provide above 800 nm. The content of this paper can provide a new idea for filter structure design.
- Subjects
PHOTONIC crystal fibers; CRYSTAL structure; OPTICAL polarizers; FINITE element method; GOLD coatings; SURFACE plasmon resonance
- Publication
Modern Physics Letters B, 2021, Vol 35, Issue 30, p1
- ISSN
0217-9849
- Publication type
Article
- DOI
10.1142/S021798492150473X