Scattering loss analysis and structure optimization of hollow-core photonic bandgap fiber |
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| Authors: | Jingming Song Rong Wu Kang Sun Xiaoliang Xu |
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| Institution: | 1.School of Instrumentation Science and Opto-electronics Engineering,Beihang University,Beijing,China;2.Changping NCO School,The Academy of Equipment,Beijing,China |
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| Abstract: | Effects of core structure in 7 cell hollow-core photonic bandgap fibers (HC-PBGFs) on scattering loss are analyzed by means of investigating normalized interface field intensity. Fibers with different core wall thickness, core radius and rounding corner of air hole are simulated. Results show that with thick core wall and expanded core radius, scattering loss could be greatly reduced. The scattering loss of the HC-PBGFs in the wavelength range of 1.5–1.56 μm could be decreased by about 50 % of the present level with optimized core structure design. |
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