Design of polarization splitter based on dual-core surface plasmon resonance photonic crystal fiber

In this article, a solid silica core plasmonic photonic crystal fiber-based polarization splitter is proposed to concurrently achieve a short length, good extinction ratio, and acceptable bandwidth at communication wavelength. The model consists of dual-core design with a series of air holes arrange...

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Bibliographic Details
Published in:The European physical journal. D, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2022-07, Vol.76 (7), Article 117
Main Authors: Revathi, A. Arunya, Rajeswari, D.
Format: Article
Language:English
Subjects:
Acceptable noise levels
Applications of Nonlinear Dynamics and Chaos Theory
Atomic
Bandwidths
Communications systems
Coupling
Crystal fibers
Design
Extinction
Fiber optics
Finite element method
Gold
Molecular
Optical and Plasma Physics
Photonic crystals
Physical Chemistry
Physics
Physics and Astronomy
Polaritons
Polarization
Quantum Information Technology
Quantum Physics
Regular Article – Optical Phenomena and Photonics
Spectroscopy/Spectrometry
Spintronics
Surface plasmon resonance
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Summary:In this article, a solid silica core plasmonic photonic crystal fiber-based polarization splitter is proposed to concurrently achieve a short length, good extinction ratio, and acceptable bandwidth at communication wavelength. The model consists of dual-core design with a series of air holes arranged symmetrically. The surface plasmon resonance (SPR) active metal is metallic gold. Resonant coupling between the second-order surface plasmon polaritons (SPP) mode and the core-guided modes can improve the coupling characteristics of the developed dual-core photonic crystal fiber (DC-PCF). A complete analysis was performed using the finite element method for wavelengths from 1200 to 2100 nm. The splitter extinction ratio at the 1.55 µm wavelength is 149.9 dB, which is better than − 20 dB. The splitter has a short length of 34 µm and a bandwidth of 200 nm. In comparison to the designed DC-PCF with gold wire, a gold layer is put into the designed DC-PCF to achieve excellent splitting performance and reasonable bandwidth. Therefore, the proposed design proves to be highly applicable in fiber-optic communication systems. Graphical abstract
ISSN:1434-6060
1434-6079
DOI:10.1140/epjd/s10053-022-00445-z