Highly birefrigent photonic crystal fiber with high negative dispersion for broadband dispersion compensation |
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Authors: | Yashar E. Monfared S.A. Mojtahedinia |
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Affiliation: | 1. Department of Electrical and Computer Engineering, Dalhousie University, Halifax, NS, B3J 2X4 Canada;2. Department of Electrical Engineering, Shahre-rey Branch, Islamic Azad University, Tehran, Iran |
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Abstract: | In this paper, we proposed a dual-enhanced core photonic crystal fiber (PCF) with high birefringence and ultra-high negative dispersion for dispersion compensation in a polarization maintained optical system. Using finite difference time domain (FDTD) method, we presented dispersion compensating PCF (DC-PCF) with negative dispersion between −1650 ps nm−1 km−1 and −2305 ps nm−1 km−1 in C-band and particularly −2108 ps nm−1 km−1 in λ = 1.55 μm wavelength. By this method, we can compensate dispersion in 124 km long span of a conventional single mode fiber (SMF) by 1 km-long of the DC-PCF at λ = 1.55 μm wavelength. Moreover, fundamental mode of the proposed PCF can induce birefringence about 3.5 × 10−3 at 1.55 μm wavelength. |
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Keywords: | Birefrigence Dispersion compensation Effective area Hexagonal lattice Photonic crystal fibers |
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