Ultra-broadband polarization splitter based on graphene layer-filled dual-core photonic crystal fiber |
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| Affiliation: | College of Optoelectronic Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China |
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| Abstract: | An ultra-broadband polarization splitter based on graphene layer-filled dual-core photonic crystal fiber (GDC-PCF) that can work in a wavelength range from 1120 nm to 1730 nm is proposed in this paper. Through optimizing fiber configuration, the polarization splitter has an extinction ratio of-56.3 dB at 1.55 μm with a fiber length of 4.8 mm. Compared with the photonic crystal fiber reported splitters, to our knowledge, the GDC-PCF splitter with the extinction ratio below-20 dB has a super wide bandwidth of 610 nm. Due to the excellent splitting characteristics, the GDC-PCF will be used in coherent optical communication systems in a wavelength range from infrared to mid-infraed. |
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| Keywords: | polarization splitters graphene dual-core photonic crystal fiber |
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