Dual-Core Photonic Crystal Fiber for Use in Fiber Filters

An asymmetrical dual-core photonic crystal fiber (DC-PCF), which possesses all circular air holes, is proposed. By setting appropriate geometrical parameters, the wavelength-selective coupling property is realized, and a compact optical filter with a short length of 1.83 mm based on the DC-PCF is de...

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Bibliographic Details
Published in:IEEE photonics journal 2016-04, Vol.8 (2), p.1-8
Main Authors: Jiang, Haiming, Wang, Erlei, Xie, Kang, Hu, Zhijia
Format: Article
Language:English
Subjects:
Asymmetry
Band-pass filters
Beams (radiation)
Coupling
Couplings
Crystal fibers
DC-PCF
Filtering theory
Optical fiber communication
Optical fiber filters
Optical fiber theory
optical filter
Optical filters
Photonic crystals
Sidelobes
Spectra
transmission characteristics
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Summary:An asymmetrical dual-core photonic crystal fiber (DC-PCF), which possesses all circular air holes, is proposed. By setting appropriate geometrical parameters, the wavelength-selective coupling property is realized, and a compact optical filter with a short length of 1.83 mm based on the DC-PCF is designed. The spectral transmission characteristics of the filter are investigated by the beam propagation method. The results demonstrate that the optical filter possesses a bandwidth of ~58 nm and small sidelobes. The proposed optical filter could be used in the integrated optical systems.
ISSN:1943-0655
1943-0647
DOI:10.1109/JPHOT.2016.2539603