Designing Ultra-High-Birefringent Photonic Crystal Fibers with Circular Air Holes in the Cladding |
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Authors: | Kajal Mondal Partha Roy Chaudhuri |
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Affiliation: | Department of Physics and Meteorology , Indian Institute of Technology Kharagpur , Kharagpur , India |
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Abstract: | Abstract This article reports a new air-silica photonic crystal fiber structure of high birefringence (~10?2). The birefringence is due to large axial anisotropy introduced in the fiber geometry by a preferred arrangement of circular air holes of different sizes in the cladding structure along orthogonal directions. A series study of birefringence and cut-off properties of the fiber that leads to optimization of geometrical parameters toward maximized birefringence achievable in the single-mode regime through this micro-structure is provided. Also, other inherently related modal properties of the fiber and the stack design toward preform realization are investigated. The findings should be useful in realizing high-performance high-birefringence fiber. |
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Keywords: | finite-difference analysis high birefringence modal properties photonic crystal fiber |
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