ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Designing analysis of the polarization beam splitter in two communication bands based on a gold-filled dual-corephotonic crystal fiber |
Fan Zhen-Kai (范振凯), Li Shu-Guang (李曙光), Fan Yu-Qiu (范玉秋), Zhang Wan (张婉), An Guo-Wen (安国文), Bao Ya-Jie (鲍亚杰) |
Key Laboratory of Metastable Materials Science and Technology, College of Science, Yanshan University, Qinhuangdao 066004, China |
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Abstract We design a novel kind of polarization beam splitter based on a gold-filled dual-core photonic crystal fiber (DC-PCF). Owing to filling with two gold wires in this DC-PCF, its coupling characteristics can be changed greatly by the second-order surface plasmon polariton (SPP) and the resonant coupling between the surface plasmon modes and the fiber-core guided modes can enhance the directional power transfer in the two fiber-cores. Numerical results by using the finite element method show the extinction ratio at the wavethlengths of 1.327 μm and 1.55 μm can reach-58 dB and-60 dB and the bandwidths as the extinction ratio better than-12 dB are about 54 nm and 47 nm, respectively. Compared with the gold-unfilled DC-PCF, a 1.746-mm-long gold-filled DC-PCF is better applied to the polarization beam splitter in the two communication bands of λ=1.327 μm and 1.55 μm.
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Received: 11 December 2013
Revised: 26 March 2014
Accepted manuscript online:
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PACS:
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42.81.-i
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(Fiber optics)
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42.81.Pa
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(Sensors, gyros)
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71.45.Gm
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(Exchange, correlation, dielectric and magnetic response functions, plasmons)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61178026) and the Natural Science Foundation of Hebei Province, China (Grant No. E2012203035). |
Corresponding Authors:
Li Shu-Guang
E-mail: shuguangli@ysu.edu.cn
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Cite this article:
Fan Zhen-Kai (范振凯), Li Shu-Guang (李曙光), Fan Yu-Qiu (范玉秋), Zhang Wan (张婉), An Guo-Wen (安国文), Bao Ya-Jie (鲍亚杰) Designing analysis of the polarization beam splitter in two communication bands based on a gold-filled dual-corephotonic crystal fiber 2014 Chin. Phys. B 23 094212
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