Highly birefringent large negative dispersion-flattened photonic crystal fibre for broadband residual dispersion compensation |
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Authors: | Mohammad Faisal Animesh Bala Kanan Roy Chowdhury Md. Borhan Mia |
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Affiliation: | 1. Department of Electrical &2. Electronic Engineering, Bangladesh University of Engineering &3. Technology, Dhaka, Bangladesh;4. Electronic Engineering, Chittagong University of Engineering &5. Technology, Chittagong, Bangladesh |
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Abstract: | A triangular lattice photonic crystal fibre is presented in this paper for residual dispersion compensation. The fibre exhibits a flattened negative dispersion of ?992.01 ± 6.93 ps/(nm-km) over S+C+L wavelength bands and ?995.83 ± 0.42 ps/(nm-km) over C-band. The birefringence is about 4.4 × 10?2 at the excitation wavelength of 1550 nm which is also very high. Full vector finite element method (FEM) with a perfectly matched absorbing layer (PML) boundary condition is applied to numerically investigate the guiding properties of this PCF. The fibre operates at fundamental mode only. All these properties endorse this fibre as a suitable candidate for compensating residual dispersion and polarization maintaining applications. |
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Keywords: | Photonic crystal fibre birefringence dispersion compensation, fibre-optic communication finite element method |
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